Revert "Change SysemUIFactory to SystemUIInitializer."

Revert submission 18917521-b235624311-app-component

Reason for revert: Broken test b/238359875 and b/238372209
Reverted Changes:
I7029fb296:Change SysemUIFactory to SystemUIInitializer.
I082787983:Conform to new SystemUIInitializer pattern.
I923e5bbbc:Conform to new SystemUIInitializer pattern.
I7af1a39b2:Conform to new SystemUIInitializer pattern.
Iba9a5ba24:Conform to new SystemUIInitializer pattern.
I4fe83e292:Conform to new SystemUIInitializer pattern.
I7f54204ae:Conform to new SystemUIInitializer pattern.
I6246c6eb4:Conform to new SystemUIInitializer pattern.

Bug: 238359875
Bug: 238372209
Change-Id: I833ec524c4f6072d64eba55e22f0b37341d38f4f