Force close_crash happened when add new mail from Email widget

rootcause: The widget store a email account id when Launcher add a email widget.
If the email account is removed, but the widget acount id is still exsit.

This was merged in AOSP: https://android-review.googlesource.com/#/c/47592/

Change-Id: I4b18e19506ed6afe5d24ab44585cd58c37e221f0