Resume throwing if too many concurrent alarms

We temporarily stopped throwing to resolve issues with the accounting.
Resuming now.

Test: atest CtsAlarmManagerTestCases:UidCapTests
Test: atest com.android.server.AlarmManagerServiceTest

Bug: 129995049
Change-Id: Iabadfd02d789b5f184379df46022aeae2314db9c

services/core/java/com/android/server/AlarmManagerService.java

@@ -1764,8 +1764,7 @@ class AlarmManagerService extends SystemService {
                                 + ", callingPackage: " + callingPackage;
                 // STOPSHIP (b/128866264): Just to catch breakages. Remove before final release.
                 Slog.wtf(TAG, errorMsg);
-                // TODO b/129995049: Resume throwing after some soak time without errors
-                // throw new UnsupportedOperationException(errorMsg);
+                throw new UnsupportedOperationException(errorMsg);
             }
             setImplLocked(type, triggerAtTime, triggerElapsed, windowLength, maxElapsed,
                     interval, operation, directReceiver, listenerTag, flags, true, workSource,