More control messages check

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationViewModel.kt

@@ -241,7 +241,7 @@ class ConversationViewModel(
             // hashes are required if wanting to delete messages from the 'storage server'
             // They are not required for communities OR if all messages are outgoing
             // also we can only delete deleted messages (marked as deleted) locally
-            val canDeleteForEveryone = messages.all{ !it.isDeleted } && (
+            val canDeleteForEveryone = messages.all{ !it.isDeleted && !it.isControlMessage } && (
                     messages.all { it.isOutgoing } ||
                     conversationType == MessageType.COMMUNITY ||
                             messages.all { lokiMessageDb.getMessageServerHash(it.id, it.isMms) != null