Revert "MMS: Fix lookup of vanity addresses"

This reverts commit ee1ca02c993ed3f05d07bd1542301d59a7897e33

Change-Id: I6f11555b57961d653f49733e7a4f3f6f60892e04
MMS: Fix lookup of vanity addresses

Avoid the use of the function PhoneNumberUtils.stripSeparators for non-strict
phone numbers.

Change-Id: I9db09780fd066f07fd0c22a8dad7431d34805b25
JIRA: CYAN-57
Issue: https://jira.cyanogenmod.org/browse/CYAN-57
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>