Revert "Focus editor textarea"

This reverts commit 5b3e7b319f719dbe0a536df6d90eb0f167619d55.
Apparently this doesn't fix the issue
Plus it introduces https://bugzilla.wikimedia.org/73585

Change-Id: I672d04c16f9348f7e08c4f64b339b307276d2a5a
(cherry picked from commit 1a0c4692b3d702c3ddbaf031c02608de2262804d)