devmode-test: drop gmerge tests

Nothing on the system runs gmerge anymore, so stopping testing it.

BUG=chromium:194889
TEST=precq passes

Change-Id: I1549de558f2eaf739f12c883c3e9c40e1b75e85d
Reviewed-on: https://chromium-review.googlesource.com/1485294
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
diff --git a/devmode-test/devinstall_test.py b/devmode-test/devinstall_test.py
index c36466b..fed0aa3 100755
--- a/devmode-test/devinstall_test.py
+++ b/devmode-test/devinstall_test.py
@@ -4,12 +4,12 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-"""Integration test to test the basic functionality of dev-install and gmerge.
+"""Integration test to test the basic functionality of dev-install.
 
 This module contains a test that runs some sanity integration tests against
 a VM. First it starts a VM test image and turns it into a base image by wiping
 all of the stateful partition. Once done, runs dev_install to restore the
-stateful partition and then runs gmerge.
+stateful partition.
 """
 
 from __future__ import print_function
@@ -57,7 +57,7 @@
       image_path: Filesystem path to the image to test.
       board: Board of the image under test.
       binhost: Binhost override. Binhost as defined here is where dev-install
-               or gmerge go to search for binary packages. By default this will
+               go to search for binary packages. By default this will
                be set to the devserver url of the host running this script.
                If no override i.e. the default is ok, set to None.
     """
@@ -155,25 +155,10 @@
                     'details.')
       raise TestError('dev-install test failed with: %s' % str(e))
 
-  def TestGmerge(self):
-    """Evaluates whether the test passed or failed."""
-    logging.info('Testing that gmerge works on the image after dev install.')
-    try:
-      self.device.RunCommand(
-          ['gmerge', 'gmerge', '--accept_stable', '--usepkg',
-           '--devserver_url', self.devserver.GetDevServerURL(
-               ip=self.HOST_IP_ADDRESS, port=self.devserver.port),
-           '--board', self.board])
-    except (cros_build_lib.RunCommandError,
-            remote_access.SSHConnectionError) as e:
-      logging.error('gmerge test failed. See log for details')
-      raise TestError('gmerge test failed with: %s' % str(e))
-
   def Run(self):
     try:
       self.PrepareTest()
       self.TestDevInstall()
-      self.TestGmerge()
       logging.info('All tests passed.')
     finally:
       self.Cleanup()