Fix iOS builders, test data has moved and they don't run components_unittests.

chrome/chrome_tests_unit.gypi

Index: chrome/chrome_tests_unit.gypi
diff --git a/chrome/chrome_tests_unit.gypi b/chrome/chrome_tests_unit.gypi
index f47ca1bcc3a690eed4afedb05c5f4f435e8541d1..2f0f749f9bcfbe07149ee5958d7fdf4c9aa0da7a 100644
--- a/chrome/chrome_tests_unit.gypi
+++ b/chrome/chrome_tests_unit.gypi
@@ -1786,18 +1786,6 @@
           ],
           # Bundle all the necessary resources into the test bundle.
           'includes': ['chrome_ios_bundle_resources.gypi'],
-          'actions': [
-            {
-              'action_name': 'copy_test_data',
-              'variables': {
-                'test_data_files': [
-                  'test/data/zip',
-                ],
-                'test_data_prefix': 'chrome',
-              },
-              'includes': [ '../build/copy_test_data_ios.gypi' ],
-            },
-          ],
           'xcode_settings': {'OTHER_LDFLAGS': ['-ObjC']},
         }],
         ['enable_background==0', {