Drop '2' from presubmit's chromedriver2_unittests.

chromedriver_unittests is a duplicate target that will eventually replace chromedriver2_unittests.
BUG=none
NOTRY=true

Review URL: https://codereview.chromium.org/119753011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242899 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 88b885a2..5e64d57 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -1273,7 +1273,7 @@
       'linux_clang': ['compile'],
       'linux_rel': standard_tests + [
           'cc_unittests',
-          'chromedriver2_unittests',
+          'chromedriver_unittests',
           'components_unittests',
           'google_apis_unittests',
           'nacl_integration',
@@ -1285,7 +1285,7 @@
       'mac_rel': standard_tests + [
           'app_list_unittests',
           'cc_unittests',
-          'chromedriver2_unittests',
+          'chromedriver_unittests',
           'components_unittests',
           'google_apis_unittests',
           'message_center_unittests',
@@ -1301,7 +1301,7 @@
           'aura_unittests',
           'cc_unittests',
           'chrome_elf_unittests',
-          'chromedriver2_unittests',
+          'chromedriver_unittests',
           'components_unittests',
           'compositor_unittests',
           'events_unittests',