Replace ImsManager static methods with proper ones.

ImsManager static methods are deprecated since it doesn't support
MSIM devices. It will now always call getInstance with phoneId and
then call corresponding non-static methods.

Bug: 67602046
Test: regression tests
Change-Id: I1253249a414cc9be45d5fbbab182911144a30c32
Merged-In: I1253249a414cc9be45d5fbbab182911144a30c32