Fixed FC on calling unregisterReceiver with non registered receiver arg.

Crash Log: http://pastebin.com/r0qSGvbb

Patchset 1: Fixed a tab.

Patchset 2: Fixed spacing.

Change-Id: Idd3a7d28d62a980e5d8841535b0c9b57ea6e6a01

Conflicts:

	src/java/com/android/internal/telephony/CallManager.java
fixed conflict