Fix <= KitKat bug that prompts for MMS configuration

Fixes #6954

src/org/thoughtcrime/securesms/ConversationActivity.java

@@ -1603,7 +1603,7 @@ public class ConversationActivity extends PassphraseRequiredActionBarActivity
       Log.w(TAG, "isManual Selection: " + sendButton.isManualSelection());
       Log.w(TAG, "forceSms: " + forceSms);
 
-      if ((!recipient.isMmsGroupRecipient() || recipient.getAddress().isEmail()) && !isMmsEnabled) {
+      if ((recipient.isMmsGroupRecipient() || recipient.getAddress().isEmail()) && !isMmsEnabled) {
         handleManualMmsRequired();
       } else if (!forceSms && identityRecords.isUnverified()) {
         handleUnverifiedRecipients();