Remove android.test.** and c.a.i.u.* injar filters

These were added to work around Proguard problems caused by duplicate
classes in the APK and libraries. Unfortunately, that work around
caused other Proguard problems when trying to remove classes from
android.jar.

Bug: 30188076
Test: make checkbuild
Change-Id: I59345e60073faf3337215ecaa62cf640e19495c8