Remove desc for mute calls

Signed-off-by: Mario Danic <mario@lovelyhq.com>

app/src/main/res/layout/notification_settings_item.xml

@@ -47,7 +47,6 @@
             android:layout_height="wrap_content"
             apc:mp_default_value="false"
             apc:mp_key="mute_calls"
-            apc:mp_summary="@string/nc_mute_calls_description"
             apc:mp_title="@string/nc_mute_calls" />
 
     </com.yarolegovich.mp.MaterialPreferenceCategory>

app/src/main/res/values/strings.xml

@@ -185,7 +185,6 @@
     <string name="nc_notify_me_mention">Notify when mentioned</string>
     <string name="nc_notify_me_never">Never notify</string>
     <string name="nc_mute_calls">Mute calls</string>
-    <string name="nc_mute_calls_description">You will not receive any notification for calls</string>
 
     <!-- Bottom sheet menu -->
     <string name="nc_failed_to_perform_operation">Sorry, something went wrong!</string>