TEST_MAPPING: remove the auto-features-postsubmit configuration

This test group has been moved to another test configuration,
v2/aaos-engprod/cts-cf-auto-md-stable_3, as part of the FrameworksMockingServicesTests
module.

Bug: 256932212
Test: git diff
Change-Id: I77f633711b64004aa9af4955243c412c0c138cb7
Signed-off-by: Lucas Henneman <henneman@google.com>

TEST_MAPPING

@@ -234,30 +234,5 @@
        }
      ]
    }
- ],
- "auto-features-postsubmit": [
-   // Test tag for automotive feature targets. These are only running in postsubmit.
-   // This tag is used in targeted test features testing to limit resource use.
-   // TODO(b/256932212): this tag to be removed once the above is no longer in use.
-   {
-     "name": "FrameworksMockingServicesTests",
-     "options": [
-       {
-         "include-filter": "com.android.server.pm.UserVisibilityMediatorSUSDTest"
-       },
-       {
-         "include-filter": "com.android.server.pm.UserVisibilityMediatorMUMDTest"
-       },
-       {
-         "include-filter": "com.android.server.pm.UserVisibilityMediatorMUPANDTest"
-       },
-       {
-         "exclude-annotation": "androidx.test.filters.FlakyTest"
-       },
-       {
-         "exclude-annotation": "org.junit.Ignore"
-       }
-     ]
-   }
  ]
 }