Cleanup android.support.test package references

This is a preparation step to migrate to androidx.test library, and a
purely mechanical refactoring.

Test: Pass all non-flaky presubmit tests
  $ cts-tradefed run singleCommand cts-dev \
      --include-filter CtsActivityManagerDeviceTestCases \
      --include-filter CtsActivityManagerDeviceSdk25TestCases \
      --include-filter CtsActivityManagerDeviceSdk28TestCases \
      --include-filter CtsWindowManagerDeviceTestCases \
      --test-arg com.android.tradefed.testtype.AndroidJUnitTest:include-annotation:android.platform.test.annotations.Presubmit \
      --test-arg com.android.tradefed.testtype.AndroidJUnitTest:exclude-annotation:android.support.test.filters.FlakyTest
Bug: 122367626
Change-Id: I29308615af1fbf6e753433ccebb7c5dc37a27ff9
40 files changed