Exit getAllValidScorers early if not the primary.

This fixes the crash that occurs when getAllValidScorers() is invoked by
a non-primary user when a scorer is active.

BUG: 23040221
Change-Id: I42c9e18d74389be3191258ca5626f2c433ca7cc7
(cherry picked from commit 5b294b45d0d7afbed71fd2e59342c5ad7b8b7d76)
(cherry picked from commit 44d550c2d1343887371d9013e202c3436d621dad)
1 file changed