DS_r4: Revert "Subscription selection when dialing USSD"

This is already handled by AOSP in Dialer.

This reverts commit 63605bb077cf87d0678197b42527f6c0a4eb6436.

Conflicts:
        res/values/colors.xml
        res/values/strings.xml
        src/com/android/server/telecom/AccountSelection.java
        src/com/android/server/telecom/CallsManager.java

Change-Id: Ib5d49a6b7685c3781fad122f2d1e612993ff9e6a

SS_r4: Merge tag 'android-5.1.1_r1' into aosp-5.1

Android 5.1.1 release 1

pre-stable: Bluetooth: NPE found in static anaysis.

Fix NPE identified by static analysis.

Change-Id: I3704ea503684068528afb05db2ef9ff79d90455d
CRs-Fixed: 759479

alpha: Allow calling of voicemail using CALL_PRIVILEGED

Bug: 18456519
Change-Id: I97bd63a726ca9bc6412266a5592696daf96e912d