Enable notification always during camera recording

Show recording notification even in DND mode.

Issue: PRJ8901-1610
Issue: FP3-A11#233
Change-Id: I46220079dd2b00e7dffa2f8d3f907baa88bb9536
(cherry picked from commit c618eb609d4c5000eb816a81f695a0c3f88b2db3)
diff --git a/services/core/java/com/android/server/notification/ZenModeHelper.java b/services/core/java/com/android/server/notification/ZenModeHelper.java
index 4931d3f..8746486 100644
--- a/services/core/java/com/android/server/notification/ZenModeHelper.java
+++ b/services/core/java/com/android/server/notification/ZenModeHelper.java
@@ -1312,9 +1312,6 @@
             switch (ringerModeNew) {
                 case AudioManager.RINGER_MODE_SILENT:
                     if (isChange) {
-                        if (mZenMode == Global.ZEN_MODE_OFF) {
-                            newZen = Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS;
-                        }
                         ringerModeInternalOut = isVibrate ? AudioManager.RINGER_MODE_VIBRATE
                                 : AudioManager.RINGER_MODE_SILENT;
                     } else {