[Android] Remove the --test_data option from the test runner.

build/android/test_runner.py

Index: build/android/test_runner.py
diff --git a/build/android/test_runner.py b/build/android/test_runner.py
index 8ca3ed74020253ccd7df5dd805be8c2a30b14d7d..46889f94a6c0d7a06977c358d5c14ed81353cd82 100755
--- a/build/android/test_runner.py
+++ b/build/android/test_runner.py
@@ -340,13 +340,6 @@ def AddJavaTestOptions(argument_group):
   argument_group.add_argument(
       '--official-build', action='store_true', help='Run official build tests.')
   argument_group.add_argument(
-      '--test_data', '--test-data', action='append', default=[],
-      help=('Each instance defines a directory of test data that should be '
-            'copied to the target(s) before running the tests. The argument '
-            'should be of the form <target>:<source>, <target> is relative to '
-            'the device data directory, and <source> is relative to the '
-            'chromium build directory.'))
-  argument_group.add_argument(
       '--disable-dalvik-asserts', dest='set_asserts', action='store_false',
       default=True, help='Removes the dalvik.vm.enableassertions property')