Removing outdated STS code owners and adding one that was missing am: 54a8889a61 am: a3ea9bcfc6 am: b8bcf7574a am: 380ee2d05c am: 425d966a33 am: 34cb8891ec

Original change: https://googleplex-android-review.googlesource.com/c/platform/cts/+/15729184

Change-Id: I6ab092519d8b8ad55136cea486b16e2a0a2792a2