Mms: Fix Custom Vibration Notifs in Simplified Chinese + Translations

Removed untranslatable strings which were breaking custom vibration
notification settings, also updated translations to reflect recent
changes while I was at it.

Herp derp on my part.

Jellybean branch patch: http://review.cyanogenmod.org/#/c/28044/

Change-Id: I6428fe54df92af0943e61fdebcb4ec6b27628df3