Deleted extra translations

Fixed compiler warnings

Change-Id: I64d691ab9cd450b4f2a5276e2d181ed20b2ea47f
Deleted unused summary string

Fixed compiler error after: http://review.cyanogenmod.org/#/c/31630/

Change-Id: I3a2ab56603c174daa09e99cc36538d35025ef31c
Merge branch 'cm-10.1' of github.com:CyanogenMod/android_packages_apps_Mms into cm-10.1