Remove un-needed virtual functions

already virtual on the base

Author: Aidan Lee

include/hx/thread/Thread.hpp

@@ -25,13 +25,6 @@ namespace hx
 
 			virtual String getName() = 0;
 			virtual void setName(const String& name) = 0;
-
-			virtual String toString() override = 0;
-
-			virtual void __Mark(HX_MARK_PARAMS) override = 0;
-#ifdef HXCPP_VISIT_ALLOCS
-			virtual void __Visit(HX_VISIT_PARAMS) override = 0;
-#endif
 		};
 	}
 }