Revert enable exclusive in category atomic API

A test is failing after converting the enable-exclusive shell command
to use the atomic API. Revert the shell command changes for now.

Bug: 180016597
Test: com.android.launcher3.memory.MemoryTests#testActivityRecreation
Change-Id: I6d84d3d155d8ce3a0bdd25d1afa491dbbd94d960