[ Merged from http://go/wvgerrit/143750 ]
The old test license holder would generate a minimal license response,
but could not correctly mimic important server logic introduced in the
v16 server. Since all integration tests now have policies on the UAT
server, we do not need these minimalist license responses anymore.
Bug: 192700112
Test: GtsMediaTestCases on sunfish
Change-Id: I78c1b6085a6d0239840a11f2b904902210e5e61c
fd00a8af24