tree a2ec78b26d5c3de792a8039df4a5f69769c6b939
parent 30119921f6842e44b8a70e08bba8a7ce4bed6fd0
author Dave Borowitz <dborowitz@google.com> 1544645497 -0800
committer Dave Borowitz <dborowitz@google.com> 1544712122 -0800

BatchUpdate: Remove non-assisted Factory

This class was serving two purposes:
 * Delegate to the appropriate implementation's factory depending on
   NoteDb migration state.
 * Have an extra bulk execute method which delegated to an
   implementation's bulk execute method.

With only one implementation, we don't need a separate class for this.
Callers can use the assisted factory directly (now renamed to just
Factory), and call the static method.

Change-Id: I1ce668b63fc5509b329755977378d4708d6bbeb0