Revert "Re-add legacy soft-ap for kitkat (1/2)"

This reverts commit 95548ca432287653b6d141e03a818f1002a285fa.

Change-Id: I2c02280b11df5c9f45cebf1ab73b3c0845938cb5
Merge "Revert "Re-add legacy soft-ap for kitkat (1/2)"" into android-4.4