Disable left pane of "Input languages" conditionally.

The screen is available from LatinIME's setting button, in which
we don't want the left pane, while we want the left pane when
launched as part of Settings app.

Bug: 3383738
Change-Id: I62e901e7cc14053742ae35829d82c20e432a358f
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index e94dfcb..e559325 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -353,7 +353,7 @@
                 android:resource="@id/language_settings" />
         </activity>
 
-        <activity android:name="Settings$InputMethodAndSubtypeEnablerActivity"
+        <activity android:name=".inputmethod.InputMethodAndSubtypeEnablerActivity"
                 android:theme="@android:style/Theme.Holo"
                 android:label="@string/input_methods_and_subtype_enabler_title"
                 android:clearTaskOnLaunch="true">
@@ -364,14 +364,6 @@
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="com.android.settings.SHORTCUT" />
             </intent-filter>
-            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
-                android:value="com.android.settings.inputmethod.InputMethodAndSubtypeEnabler" />
-            <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID"
-                android:resource="@id/language_settings" />
-            <meta-data android:name="com.android.settings.PARENT_FRAGMENT_TITLE"
-                android:resource="@string/language_keyboard_settings_title" />
-            <meta-data android:name="com.android.settings.PARENT_FRAGMENT_CLASS"
-                android:value="com.android.settings.Settings$InputMethodAndLanguageSettingsActivity" />
         </activity>
 
         <activity android:name="Settings$InputMethodConfigActivity"