parsers CHANGE remove line information

instead of line we are already providing path which should be more usefull.
Removing line information should reduce size of the library, necessary stack
and several structures (so the size of the data)
diff --git a/src/validation.c b/src/validation.c
index 3e00cd3..5ebc9bf 100644
--- a/src/validation.c
+++ b/src/validation.c
@@ -26,7 +26,7 @@
 #include "xml_internal.h"
 
 static int
-lyv_keys(const struct lyd_node *list, unsigned int line)
+lyv_keys(const struct lyd_node *list)
 {
     struct lyd_node *child;
     struct lys_node_list *schema = (struct lys_node_list *)list->schema; /* shortcut */
@@ -35,10 +35,10 @@
     for (i = 0, child = list->child; i < schema->keys_size; i++, child = child->next) {
         if (!child || child->schema != (struct lys_node *)schema->keys[i]) {
             /* key not found on the correct place */
-            LOGVAL(LYE_MISSELEM, line, LY_VLOG_LYD, list, schema->keys[i]->name, schema->name);
+            LOGVAL(LYE_MISSELEM, LY_VLOG_LYD, list, schema->keys[i]->name, schema->name);
             for ( ; child; child = child->next) {
                 if (child->schema == (struct lys_node *)schema->keys[i]) {
-                    LOGVAL(LYE_SPEC, 0, LY_VLOG_LYD, child, "Invalid position of the key element.");
+                    LOGVAL(LYE_SPEC, LY_VLOG_LYD, child, "Invalid position of the key element.");
                     break;
                 }
             }
@@ -313,7 +313,7 @@
         if (!((struct lyd_node_leaf_list *)node)->value.leafref) {
             if (!(options & (LYD_OPT_FILTER | LYD_OPT_EDIT | LYD_OPT_GET | LYD_OPT_GETCONFIG))) {
                 /* try to resolve leafref */
-                rc = resolve_unres_data_item(node, UNRES_LEAFREF, 0);
+                rc = resolve_unres_data_item(node, UNRES_LEAFREF);
                 if (rc) {
                     return EXIT_FAILURE;
                 }
@@ -324,7 +324,7 @@
         if (!(options & (LYD_OPT_FILTER | LYD_OPT_EDIT | LYD_OPT_GET | LYD_OPT_GETCONFIG)) &&
                 ((struct lys_node_leaf *)node->schema)->type.info.inst.req > -1) {
             /* try to resolve instance-identifier to get know if the target exists */
-            rc = resolve_unres_data_item(node, UNRES_INSTID, 0);
+            rc = resolve_unres_data_item(node, UNRES_INSTID);
             if (rc) {
                 return EXIT_FAILURE;
             }
@@ -339,7 +339,7 @@
 }
 
 int
-lyv_data_context(const struct lyd_node *node, int options, unsigned int line, struct unres_data *unres)
+lyv_data_context(const struct lyd_node *node, int options, struct unres_data *unres)
 {
     const struct lys_node *siter = NULL;
 
@@ -348,20 +348,20 @@
 
     /* check if the node instance is enabled by if-feature */
     if (lys_is_disabled(node->schema, 2)) {
-        LOGVAL(LYE_INELEM, line, LY_VLOG_LYD, node, node->schema->name);
+        LOGVAL(LYE_INELEM, LY_VLOG_LYD, node, node->schema->name);
         return EXIT_FAILURE;
     }
 
     /* check all relevant when conditions */
     if ((!(options & LYD_OPT_TYPEMASK) || (options & LYD_OPT_CONFIG)) && resolve_applies_when(node)) {
-        if (unres_data_addonly(unres, (struct lyd_node *)node, UNRES_WHEN, line)) {
+        if (unres_data_addonly(unres, (struct lyd_node *)node, UNRES_WHEN)) {
             return EXIT_FAILURE;
         }
     }
 
     /* check for (non-)presence of status data in edit-config data */
     if ((options & (LYD_OPT_EDIT | LYD_OPT_GETCONFIG | LYD_OPT_CONFIG)) && (node->schema->flags & LYS_CONFIG_R)) {
-        LOGVAL(LYE_INELEM, line, LY_VLOG_LYD, node, node->schema->name);
+        LOGVAL(LYE_INELEM, LY_VLOG_LYD, node, node->schema->name);
         return EXIT_FAILURE;
     }
 
@@ -374,7 +374,7 @@
                 if (siter == node->prev->schema) {
                     /* data predecessor has the schema node after
                      * the schema node of the data node being checked */
-                    LOGVAL(LYE_INORDER, line, LY_VLOG_LYD, node, node->schema->name, siter->name);
+                    LOGVAL(LYE_INORDER, LY_VLOG_LYD, node, node->schema->name, siter->name);
                     return EXIT_FAILURE;
                 }
             }
@@ -386,7 +386,7 @@
 }
 
 int
-lyv_data_content(struct lyd_node *node, int options, unsigned int line, struct unres_data *unres)
+lyv_data_content(struct lyd_node *node, int options, struct unres_data *unres)
 {
     const struct lys_node *schema, *siter;
     const struct lys_node *cs, *ch;
@@ -402,7 +402,7 @@
     if (node->validity) {
         /* check presence and correct order of all keys in case of list */
         if (schema->nodetype == LYS_LIST && !(options & (LYD_OPT_FILTER | LYD_OPT_GET | LYD_OPT_GETCONFIG))) {
-            if (lyv_keys(node, line)) {
+            if (lyv_keys(node)) {
                 return EXIT_FAILURE;
             }
         }
@@ -413,9 +413,9 @@
             siter = ly_check_mandatory(node, NULL);
             if (siter) {
                 if (siter->nodetype & (LYS_LIST | LYS_LEAFLIST)) {
-                    LOGVAL(LYE_INCOUNT, line, LY_VLOG_LYD, node, siter->name, siter->parent->name);
+                    LOGVAL(LYE_INCOUNT, LY_VLOG_LYD, node, siter->name, siter->parent->name);
                 } else {
-                    LOGVAL(LYE_MISSELEM, line, LY_VLOG_LYD, node, siter->name, siter->parent->name);
+                    LOGVAL(LYE_MISSELEM, LY_VLOG_LYD, node, siter->name, siter->parent->name);
                 }
                 return EXIT_FAILURE;
             }
@@ -451,7 +451,7 @@
                     for (siter = diter->schema->parent; siter; siter = siter->parent) {
                         if (siter->nodetype == LYS_CHOICE) {
                             if (siter == ch) {
-                                LOGVAL(LYE_MCASEDATA, line, LY_VLOG_LYD, node, ch->name);
+                                LOGVAL(LYE_MCASEDATA, LY_VLOG_LYD, node, ch->name);
                                 return EXIT_FAILURE;
                             } else {
                                 continue;
@@ -462,7 +462,7 @@
                             if (siter->parent != ch) {
                                 continue;
                             } else if (!cs || cs != siter) {
-                                LOGVAL(LYE_MCASEDATA, line, LY_VLOG_LYD, node, ch->name);
+                                LOGVAL(LYE_MCASEDATA, LY_VLOG_LYD, node, ch->name);
                                 return EXIT_FAILURE;
                             }
                         }
@@ -535,7 +535,7 @@
                         /* we are done */
                         break;
                     } else {
-                        LOGVAL(LYE_TOOMANY, line, LY_VLOG_LYD, node, schema->name,
+                        LOGVAL(LYE_TOOMANY, LY_VLOG_LYD, node, schema->name,
                                schema->parent ? schema->parent->name : "data tree");
                         return EXIT_FAILURE;
                     }
@@ -602,7 +602,7 @@
                         }
                     }
                 } else if (!lyd_compare(diter, node, 1)) { /* comparing keys and unique combinations */
-                    LOGVAL(LYE_DUPLIST, line, LY_VLOG_LYD, node, schema->name);
+                    LOGVAL(LYE_DUPLIST, LY_VLOG_LYD, node, schema->name);
                     return EXIT_FAILURE;
                 }
             }
@@ -613,7 +613,7 @@
         siter = node->schema;
         do {
             if (((siter->flags & LYS_STATUS_MASK) == LYS_STATUS_OBSLT) && (options & LYD_OPT_OBSOLETE)) {
-                LOGVAL(LYE_OBSDATA, line, LY_VLOG_LYD, node, schema->name);
+                LOGVAL(LYE_OBSDATA, LY_VLOG_LYD, node, schema->name);
                 return EXIT_FAILURE;
             }
             siter = siter->parent;
@@ -626,7 +626,7 @@
                 tpdf = ((struct lys_node_leaf *)node->schema)->type.der;
                 while(tpdf) {
                     if ((tpdf->flags & LYS_STATUS_MASK) == LYS_STATUS_OBSLT) {
-                        LOGVAL(LYE_OBSTYPE, line, LY_VLOG_LYD, node, schema->name, tpdf->name);
+                        LOGVAL(LYE_OBSTYPE, LY_VLOG_LYD, node, schema->name, tpdf->name);
                         return EXIT_FAILURE;
                     }
                     tpdf = tpdf->type.der;
@@ -635,7 +635,7 @@
             if (((struct lyd_node_leaf_list *)node)->value_type == LY_TYPE_IDENT) {
                 ident = ((struct lyd_node_leaf_list *)node)->value.ident;
                 if (lyp_check_status(schema->flags, schema->module, schema->name,
-                                 ident->flags, ident->module, ident->name, line, schema)) {
+                                 ident->flags, ident->module, ident->name, schema)) {
                     return EXIT_FAILURE;
                 }
             }
@@ -644,11 +644,11 @@
 
     /* check must conditions */
     if (unres) {
-        if (unres_data_add(unres, node, UNRES_MUST, line) == -1) {
+        if (unres_data_add(unres, node, UNRES_MUST) == -1) {
             return EXIT_FAILURE;
         }
     } else {
-        if (resolve_unres_data_item(node, UNRES_MUST, line)) {
+        if (resolve_unres_data_item(node, UNRES_MUST)) {
             return EXIT_FAILURE;
         }
     }