Revert "MMTEL Compat: Remove VT flag when VT+VoLTE are enabled"

This reverts commit 82e0040a934183ca4977c04100bc817a7b162ffb.

Reason for revert: Moving to vendor specific code.

Change-Id: I750e354177c5658581a16f5d03ca6c1785256cdb
1 file changed