Revert "DNS cleanup"

The '*.local 1H IN A 127.0.0.1' entry was added in
Ifc752ac89bbfa1c793d37917b099b0c98dc38a5a to provide a means for
MediaWiki-Vagrant to implement consistent name-based vhosting for roles.

This reverts commit 8272e65f4b9a0ce4ff3a2dc02f9d70caa59566ae.

Bug: 62992
Change-Id: I929b4b05643262a110346fefe231fd0f6dd474ce
Merge "Revert "DNS cleanup""