Remove unused overloads in Schema

Change-Id: I919c7175401c557a489b6f288f7f5517a77472d9
diff --git a/tests/ls_interpreter.cpp b/tests/ls_interpreter.cpp
index 4a60762..2ae0b7c 100644
--- a/tests/ls_interpreter.cpp
+++ b/tests/ls_interpreter.cpp
@@ -26,11 +26,9 @@
     IMPLEMENT_CONST_MOCK1(leafTypeName);
     IMPLEMENT_CONST_MOCK1(isModule);
     IMPLEMENT_CONST_MOCK1(leafrefPath);
-    MAKE_CONST_MOCK3(listHasKey, bool(const schemaPath_& location, const ModuleNodePair& node, const std::string& key), override);
-    MAKE_CONST_MOCK2(listHasKey, bool(const schemaPath_& listPath, const std::string& key), override);
+    IMPLEMENT_CONST_MOCK2(listHasKey);
     IMPLEMENT_CONST_MOCK1(leafIsKey);
-    MAKE_CONST_MOCK2(listKeys, const std::set<std::string>(const schemaPath_& location, const ModuleNodePair& node), override);
-    MAKE_CONST_MOCK1(listKeys, const std::set<std::string>(const schemaPath_& listPath), override);
+    IMPLEMENT_CONST_MOCK1(listKeys);
     MAKE_CONST_MOCK1(nodeType, yang::NodeTypes(const std::string&), override);
     MAKE_CONST_MOCK2(nodeType, yang::NodeTypes(const schemaPath_&, const ModuleNodePair&), override);
     IMPLEMENT_CONST_MOCK1(status);