Revert "Fix drag and drop on 2d viewport"
Revert "Fix drag and drop on 2d viewport"

This reverts commits a9d8da91b72fe8493f9087563056bb4ade4ca2c7
and 4230b22558516473fe2b11f05436fab13269789c.

pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1