OrbitControls: Remove duplicate code (#24333)

examples/js/controls/OrbitControls.js

@@ -844,8 +844,6 @@
 
 			function onMouseMove( event ) {
 
-				if ( scope.enabled === false ) return;
-
 				switch ( state ) {
 
 					case STATE.ROTATE:

examples/jsm/controls/OrbitControls.js

@@ -960,8 +960,6 @@ class OrbitControls extends EventDispatcher {
 
 		function onMouseMove( event ) {
 
-			if ( scope.enabled === false ) return;
-
 			switch ( state ) {
 
 				case STATE.ROTATE: