Permit Recents component to access multiple users data

After switching users, Recents maintains task state
listeners for all users and as such needs to request
tasks from all users instead of just the current one.
There's a separate task in which we need to audit the
callbacks and associate userIds with them or only
send callbacks to potentially active users.
See b/146080174
However, some components around sysUi still need
access to multiple users data so this removal of this
check is still necessary.

Fixes: 144702576
Test: Setup work profile under primary user using
Test DPC app. Opened both work and non-work profile
apps, switch profile to guest, observed no crash.
Also did test steps in ag/3469837 for which the
checks were originally introduced.

Change-Id: I9b30a0287246594200fba7a3af075d0051b5fac2