Revert "BT MAP: added support for email sharing over BT"

This reverts commit 326b5e61.

Conflicts:
	Android.mk
	res/values/strings.xml
	src/com/android/bluetooth/map/BluetoothMapService.java
	src/com/android/bluetooth/map/BluetoothMnsObexClient.java

Change-Id: I1c1a3220d229473a6d13a568856d6001277bfa2a