Workaround for building gtest dependencies.

Now that ART tests are not soong "installable" (due to go/aog/1193736),
manually add all gtests in the Makefile to ensure we build their
dependencies as listed in the makefile.

Also remove bitrotted make-based target test invocation.

Test: run-gtests.sh
Bug: 146995717
Change-Id: I3c680f00b46f2cadb2c0accabcc25e085fef4c88
1 file changed