schema CHANGE remove lysc_node_set_private() which duplicates lysc_set_private()

Duplication in the API, lysc_node_set_private() was limited to lysc_node
only while lysc_set_private() handles also RPCs or Notifications.
diff --git a/src/tree_schema.c b/src/tree_schema.c
index 4d1aba3..d5d672c 100644
--- a/src/tree_schema.c
+++ b/src/tree_schema.c
@@ -799,14 +799,45 @@
 }
 
 API LY_ERR
-lysc_node_set_private(const struct lysc_node *node, void *priv, void **prev_priv_p)
+lysc_set_private(const struct lysc_node *node, void *priv, void **prev_priv_p)
 {
+    struct lysc_action *act;
+    struct lysc_notif *notif;
+
     LY_CHECK_ARG_RET(NULL, node, LY_EINVAL);
 
-    if (prev_priv_p) {
-        *prev_priv_p = node->priv;
+    switch (node->nodetype) {
+    case LYS_CONTAINER:
+    case LYS_CHOICE:
+    case LYS_CASE:
+    case LYS_LEAF:
+    case LYS_LEAFLIST:
+    case LYS_LIST:
+    case LYS_ANYXML:
+    case LYS_ANYDATA:
+        if (prev_priv_p) {
+            *prev_priv_p = node->priv;
+        }
+        ((struct lysc_node *)node)->priv = priv;
+        break;
+    case LYS_RPC:
+    case LYS_ACTION:
+        act = (struct lysc_action *)node;
+        if (prev_priv_p) {
+            *prev_priv_p = act->priv;
+        }
+        act->priv = priv;
+        break;
+    case LYS_NOTIF:
+        notif = (struct lysc_notif *)node;
+        if (prev_priv_p) {
+            *prev_priv_p = notif->priv;
+        }
+        notif->priv = priv;
+        break;
+    default:
+        return LY_EINVAL;
     }
-    ((struct lysc_node *)node)->priv = priv;
 
     return LY_SUCCESS;
 }
diff --git a/src/tree_schema.h b/src/tree_schema.h
index 2fdbc6c..8f16508 100644
--- a/src/tree_schema.h
+++ b/src/tree_schema.h
@@ -1746,11 +1746,11 @@
  *
  * @param[in] node Node, whose private field will be assigned. Works also for RPCs, actions, and notifications.
  * @param[in] priv Arbitrary user-specified pointer.
- * @param[out] prev Optional previous private object of the \p node. Note, that
+ * @param[out] prev_priv_p Optional previous private object of the \p node. Note, that
  * the caller is in this case responsible (if it is necessary) for freeing the replaced private object.
  * @return LY_ERR value.
  */
-LY_ERR lysc_set_private(const struct lysc_node *node, void *priv, void **prev);
+LY_ERR lysc_set_private(const struct lysc_node *node, void *priv, void **prev_priv_p);
 
 /**
  * @brief Get how the if-feature statement currently evaluates.
@@ -2036,17 +2036,6 @@
 const struct lysc_node *lysc_node_is_disabled(const struct lysc_node *node, ly_bool recursive);
 
 /**
- * @brief Set a schema private pointer to a user pointer.
- *
- * @param[in] node Node, whose private field will be assigned.
- * @param[in] priv Arbitrary user-specified pointer.
- * @param[out] prev_priv_p Pointer to the previous private data being returned after replacinf by @p priv.
- * @return LY_EINVAL in case of invalid @p node.
- * @return LY_SUCCESS on success.
- */
-LY_ERR lysc_node_set_private(const struct lysc_node *node, void *priv, void **prev_priv_p);
-
-/**
  * @brief Check type restrictions applicable to the particular leaf/leaf-list with the given string @p value.
  *
  * This function check just the type's restriction, if you want to check also the data tree context (e.g. in case of
diff --git a/src/tree_schema_helpers.c b/src/tree_schema_helpers.c
index ad28cab..142f2cb 100644
--- a/src/tree_schema_helpers.c
+++ b/src/tree_schema_helpers.c
@@ -1667,46 +1667,3 @@
     return 1;
 }
 
-API LY_ERR
-lysc_set_private(const struct lysc_node *node, void *priv, void **prev)
-{
-    struct lysc_action *act;
-    struct lysc_notif *notif;
-
-    LY_CHECK_ARG_RET(NULL, node, LY_EINVAL);
-
-    switch (node->nodetype) {
-    case LYS_CONTAINER:
-    case LYS_CHOICE:
-    case LYS_CASE:
-    case LYS_LEAF:
-    case LYS_LEAFLIST:
-    case LYS_LIST:
-    case LYS_ANYXML:
-    case LYS_ANYDATA:
-        if (prev) {
-            *prev = node->priv;
-        }
-        ((struct lysc_node *)node)->priv = priv;
-        break;
-    case LYS_RPC:
-    case LYS_ACTION:
-        act = (struct lysc_action *)node;
-        if (prev) {
-            *prev = act->priv;
-        }
-        act->priv = priv;
-        break;
-    case LYS_NOTIF:
-        notif = (struct lysc_notif *)node;
-        if (prev) {
-            *prev = notif->priv;
-        }
-        notif->priv = priv;
-        break;
-    default:
-        return LY_EINVAL;
-    }
-
-    return LY_SUCCESS;
-}