[sanitizers-test]add definition for %device_rm on android so it stops complaining

[vitalybuka]

Thanks!

compiler-rt/test/lit.common.cfg.py

elif config.host_os == 'Darwin' and config.apple_platform != "osx":
   prepare_output = json.loads(prepare_output_json)
   config.environment.update(prepare_output["env"])
 elif config.android:
   config.available_features.add('android')
   compile_wrapper = os.path.join(config.compiler_rt_src_root, "test", "sanitizer_common", "android_commands", "android_compile.py") + " "
   config.compile_wrapper = compile_wrapper
   config.substitutions.append( ('%run', "") )
   config.substitutions.append( ('%env ', "env ") )
-  # TODO: Implement `%device_rm` to perform removal of files on a device.  For
-  # now just make it a no-op.
-  lit_config.warning('%device_rm is not implemented')
-  config.substitutions.append( ('%device_rm', 'echo ') )
 else:
   config.substitutions.append( ('%run', "") )
   config.substitutions.append( ('%env ', "env ") )
   # When running locally %device_rm is a no-op.
   config.substitutions.append( ('%device_rm', 'echo ') )
   config.compile_wrapper = ""
 
 # Define CHECK-%os to check for OS-dependent output.
if config.android:
   adb = os.environ.get('ADB', 'adb')
 
   # These are needed for tests to upload/download temp files, such as
   # suppression-files, to device.
   config.substitutions.append( ('%device_rundir', "/data/local/tmp/Output") )
   config.substitutions.append( ('%push_to_device', "%s -s '%s' push " % (adb, env['ANDROID_SERIAL']) ) )
   config.substitutions.append( ('%pull_from_device', "%s -s '%s' pull " % (adb, env['ANDROID_SERIAL']) ) )
   config.substitutions.append( ('%adb_shell ', "%s -s '%s' shell " % (adb, env['ANDROID_SERIAL']) ) )
+  config.substitutions.append( ('%device_rm', "%s -s '%s' shell 'rm ' " % (adb, env['ANDROID_SERIAL']) ) )
 
   try:
     android_api_level_str = subprocess.check_output([adb, "shell", "getprop", "ro.build.version.sdk"], env=env).rstrip()
     android_api_codename = subprocess.check_output([adb, "shell", "getprop", "ro.build.version.codename"], env=env).rstrip().decode("utf-8")
   except (subprocess.CalledProcessError, OSError):
     lit_config.fatal("Failed to read ro.build.version.sdk (using '%s' as adb)" % adb)
   try:
     android_api_level = int(android_api_level_str)