Fix grab/select of gradient edit

scene/gui/gradient_edit.cpp

@@ -147,7 +147,6 @@ void GradientEdit::_gui_input(const Ref<InputEvent> &p_event) {
 		grabbed = _get_point_from_pos(x);
 		//grab or select
 		if (grabbed != -1) {
-			grabbed = false;
 			return;
 		}