prevent watch callback on deleted file

hxd/fs/LocalFileSystem.hx

@@ -147,7 +147,7 @@ class LocalEntry extends FileEntry {
 			WATCH_INDEX = 0;
 			return;
 		}
-		var t = try w.getModifTime() catch( e : Dynamic ) -1.;
+		var t = try w.getModifTime() catch( e : Dynamic ) return;
 		if( t == w.watchTime ) return;
 
 		#if (sys || nodejs)