ContactsCommon: Remove unused strings

Change-Id: Ib99e9d76a85b374a82bdbbfc766136450a676642
Revert "ContactsCommon: Remove unused strings"

We need them. Fix build.

This reverts commit 01b20a0882f10fe186f09a4f6d5f1d9f7c7caab2.

Change-Id: I0f401f0c4a506cf1960f0d5145bf4e8876bfb58a
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_apps_ContactsCommon into cm-11.0