Revert "Update shadow parameters for television."

Missing several important values, plus we're changing the
styling attributes so this would break anyway.

This reverts commit 97fe804398a3c6c3f7bd888f7c0129f1c130bb00.

BUG: 17221975
Change-Id: I3b4a712ca21f3821ecadfc6c9d91b604f7154f0e

core/res/res/values-television/styles.xml

@@ -1,22 +0,0 @@
-<!-- Copyright (C) 2014 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<resources>
-    <style name="Lighting">
-        <item name="lightY">-300dp</item>
-        <item name="ambientShadowAlpha">0.4</item>
-        <item name="spotShadowAlpha">0.4</item>
-    </style>
-</resources>