Suppress noisy log

Test: none
Fixes: 134622163
Change-Id: I2fd868b54033eed9e70c6c8591e5ce13dcb6ba9d

services/core/java/com/android/server/notification/NotificationManagerService.java

@@ -5130,7 +5130,9 @@ public class NotificationManagerService extends SystemService {
 
     protected boolean isBlocked(NotificationRecord r, NotificationUsageStats usageStats) {
         if (isBlocked(r)) {
-            Slog.e(TAG, "Suppressing notification from package by user request.");
+            if (DBG) {
+                Slog.e(TAG, "Suppressing notification from package by user request.");
+            }
             usageStats.registerBlocked(r);
             return true;
         }