Revert "InputMethodService: Fix ignore case in showInputMethodPickerFromClient"

This reverts commit f2e67a5779.

Open Source Project CL: https://review.source.android.com/#change,16419
This change unexpectedly started preventing users from changing Input-Method.

How to reproduce
1. Long press "?123" button in LatinIME
2. Select "Input method"
3. No window will open.

Change-Id: Ie0d4b58900a9b06aa9d43f9fa0bea5165294fa30

services/java/com/android/server/InputMethodManagerService.java

@@ -1225,7 +1225,6 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
             if (mCurClient == null || client == null
                     || mCurClient.client.asBinder() != client.asBinder()) {
                 Slog.w(TAG, "Ignoring showInputMethodDialogFromClient of: " + client);
-                return;
             }
 
             mHandler.sendEmptyMessage(MSG_SHOW_IM_PICKER);