Remove wildcard from ART tests' OWNERS file.

This is in line with the policy to tighten ART's OWNERS file in
general (see e.g.
https://android-review.googlesource.com/c/platform/art/+/1757576/).

(cherry picked from commit c29cd1fb55b050510bdf5f239c37b479e3b39655)

Test: build/make/tools/checkowners.py -c art/test/OWNERS
Bug: 193029862
Change-Id: I67b1b9a0f34228df0c06c4f1cbc65af26e09979d
Merged-In: I67b1b9a0f34228df0c06c4f1cbc65af26e09979d
1 file changed