Revert "Update CtsShim to use sharedUserId"

This reverts commit 4123ccf12e6c4fad3cfa3027a454512db7f59ccb.

Reason for revert: b/295549202

Bug: 295549202
Flag: EXEMPT bugfix
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:ffb35c197348c6b227d71cac3f44a2208010495c)
Merged-In: I958805108bd8e2a90e79ae8f2add6616bc82ad84
Change-Id: I958805108bd8e2a90e79ae8f2add6616bc82ad84
3 files changed