Remove redundant String operation from GDScript enum exports

modules/gdscript/gdscript_parser.cpp

@@ -3423,7 +3423,7 @@ bool GDScriptParser::export_annotations(const AnnotationNode *p_annotation, Node
 
 				String enum_hint_string;
 				for (const Map<StringName, int>::Element *E = export_type.enum_values.front(); E; E = E->next()) {
-					enum_hint_string += E->key().operator String().camelcase_to_underscore(true).capitalize().xml_escape();
+					enum_hint_string += E->key().operator String().capitalize().xml_escape();
 					enum_hint_string += ":";
 					enum_hint_string += String::num_int64(E->get()).xml_escape();