Remove PIP feature for automotive emulators

PIP will be disabled by default for AAOS. We will provide instructions
for OEMs to re-enable through partner documentation.

Bug: 156117761
Test: atest android.server.wm.KeyguardLockedTests#testDismissKeyguardPipActivity, atest CtsWindowManagerDeviceTestCases
Change-Id: I5b14f586750597abc9810ae248adc601897f7c4b
1 file changed