Move QuickResponseSettings to top-level.

+ Add "Quick responses" header to DialerSettingsActivity.
- Delete code in GeneralSettingsFragment related to quick responses.
- Delete the RespondViaSms PreferenceScreen from the general settings
layout.
- Remove unused "other" label string.

Bug: 19372734
Change-Id: I5067da19b1eab5aa370e687556b368c7bd010e2c
diff --git a/res/xml/general_settings.xml b/res/xml/general_settings.xml
index b1a78c1..29845ed 100644
--- a/res/xml/general_settings.xml
+++ b/res/xml/general_settings.xml
@@ -61,23 +61,4 @@
 
     </PreferenceCategory>
 
-    <PreferenceCategory
-        android:key="dialer_general_other_settings_category_key"
-        android:title="@string/other_settings_title"
-        android:persistent="false" >
-
-        <PreferenceScreen
-            android:key="button_respond_via_sms_key"
-            android:title="@string/respond_via_sms_setting_title"
-            android:persistent="false">
-
-            <intent
-                android:action="android.intent.action.MAIN"
-                android:targetPackage="com.android.server.telecom"
-                android:targetClass="com.android.server.telecom.RespondViaSmsSettings$Settings" />
-
-        </PreferenceScreen>
-
-    </PreferenceCategory>
-
-</PreferenceScreen>
\ No newline at end of file
+</PreferenceScreen>