Remove redundant android buildbot step annotation

It is preferrable to print buildbot step annotations before calling
tester runners so that the call is listed in the proper step.  This
patch removes the step annotation printed by the test runner inself.

BUG=161993
R=frankf@chromium.org
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/11775013

git-svn-id: http://src.chromium.org/svn/trunk/src/build@175861 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

android/run_instrumentation_tests.py

@@ -73,9 +73,6 @@ def main(argv):
                                                      args)
 
   run_tests_helper.SetLogLevel(options.verbose_count)
-  buildbot_report.PrintNamedStep(
-      'Instrumentation tests: %s - %s' % (', '.join(options.annotation),
-                                          options.test_apk))
   ret = 1
   try:
     ret = DispatchInstrumentationTests(options)