Remove mifare feature from device/sample.

Change-Id: I63ca7b3563709bbfb1e1a61269c11456e8a60f2c
diff --git a/nxp/com.nxp.mifare.xml b/nxp/com.nxp.mifare.xml
deleted file mode 100644
index edd38a2..0000000
--- a/nxp/com.nxp.mifare.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2011 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.
--->
-
-<!-- Devices that support MIFARE need to declare NXP's feature constant -->
-<permissions>
-    <feature name="com.nxp.mifare" />
-</permissions>