Revert "posix-timers: Ensure timer ID search-loop limit is valid"

This reverts commit 8ad6679a which is
commit 8ce8849d upstream.

It breaks the Android abi.  If it is required in the future, it can come
back in an abi-safe way.

Bug: 161946584
Change-Id: I44be0f7b4df730e599bf80939b6d40d4f8d04a57
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>