Add test coverage for os.removedirs (#16775)

diff --cc Lib/test/test_os.py
index ede5f3fb2de774bf27882ff32549dca432d440d7,5b67da17baa8b1e38ad0033c85fe700c6fb6be1b..ec7b3efb06b681ddae574469231efccc98ca4118
--- 1/Lib/test/test_os.py
--- 2/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@@ -2073,11 -1355,7 +2118,12 @@@ def test_main()
          PidTests,
          LoginTests,
          LinkTests,
 +        TestSendfile,
 +        ProgramPriorityTests,
 +        ExtendedAttributeTests,
 +        Win32DeprecatedBytesAPI,
 +        TermsizeTests,
+         RemoveDirsTests,
      )
  
  if __name__ == "__main__":