Merge pull request #48126 from akien-mga/nodepath-remove-unimplemented-get_parent

NodePath: Remove unimplemented `get_parent()` method

core/string/node_path.h

@@ -66,8 +66,6 @@ public:
 
 	void prepend_period();
 
-	NodePath get_parent() const;
-
 	_FORCE_INLINE_ uint32_t hash() const {
 		if (!data) {
 			return 0;