Messaging: Do not check preferred sim if conversation sim exist

Fix unable to send message when preferred sms sim is set to
"Ask every time".

Change-Id: I0406985e29ded8157ae5252db2dd814856a93376

src/com/android/messaging/ui/conversation/ComposeMessageView.java

@@ -68,6 +68,7 @@ import com.android.messaging.util.ContentType;
 import com.android.messaging.util.LogUtil;
 import com.android.messaging.util.MediaUtil;
 import com.android.messaging.util.OsUtil;
+import com.android.messaging.util.PhoneUtils;
 import com.android.messaging.util.SafeAsyncTask;
 import com.android.messaging.util.UiUtils;
 import com.android.messaging.util.UriUtil;
@@ -381,7 +382,8 @@ public class ComposeMessageView extends LinearLayout
             return;
         }
         // Check the host for pre-conditions about any action.
-        if (mHost.isReadyForAction()) {
+        if (mHost.isReadyForAction() && (mHost.getConversationSelfSubId() > 0
+                || PhoneUtils.getDefault().getHasPreferredSmsSim())) {
             mInputManager.showHideSimSelector(false /* show */, true /* animate */);
             final String messageToSend = mComposeEditText.getText().toString();
             mBinding.getData().setMessageText(messageToSend);

src/com/android/messaging/util/UiUtils.java

@@ -342,10 +342,8 @@ public class UiUtils {
 
         // Have all the conditions been met:
         // Supports SMS?
-        // Has a preferred sim?
         // Is the default sms app?
         return phoneUtils.isSmsCapable() &&
-                phoneUtils.getHasPreferredSmsSim() &&
                 phoneUtils.isDefaultSmsApp();
     }