Avoid explict loading of libRSSupport in test

Bug: 27692823

Since libRSSupport is not necessarily included in the test APK, this
test will try to load libRSSupport.so from /system/lib directory,
which will fail after M.

This was really an old work around for NDK RS API, and no longer needed.

Change-Id: Ifccc09f5cec074fba40f7a0cfc300b8294e80aa3
1 file changed