Disables 667-jit-jni on  jit-on-first-use configuration

jit-on-first-use disables jit GC and this test requires
Jit GCs enabled as this tests if jited jni stubs are being
collected

Test: test.py -t 667-jit-jni --jit-on-first-use
Change-Id: Icc960ec1cc6cc3c13d7d01d51709541512cf4fec