Removing checks from EnableWifiTether which are done in SystemUI

Bug: 18368949
Change-Id: Ib80e7b4adaf4d5fb6029bbee0f6fdf5a99e18018
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 33d96b7..b8eb133 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -352,7 +352,7 @@
         </activity>
 
         <activity android:name=".EnableWifiTether"
-            android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"
+            android:theme="@style/Transparent"
             android:excludeFromRecents="true" />
 
         <activity android:name="Settings$TetherSettingsActivity"