remove unregistration change

functions.go

@@ -90,25 +90,6 @@ func (s *State) RegisterGoFunction(name string, fn GoFunction) error {
 
 // UnregisterGoFunction removes a global function
 func (s *State) UnregisterGoFunction(name string) {
-	// First, find the function to get its pointer
-	s.GetGlobal(name)
-	if s.IsFunction(-1) {
-		// Get the first upvalue (function pointer)
-		if C.lua_getupvalue(s.L, -1, 1) != nil {
-			ptr := C.lua_touserdata(s.L, -1)
-			if ptr != nil {
-				// Remove from registry
-				functionRegistry.Lock()
-				delete(functionRegistry.funcs, ptr)
-				C.free(ptr)
-				functionRegistry.Unlock()
-			}
-			s.Pop(1) // Pop upvalue
-		}
-	}
-	s.Pop(1) // Pop function or nil
-
-	// Remove global
 	s.PushNil()
 	s.SetGlobal(name)
 }