Cleanup: Remove the remaining instances of ChromiumTestShell from Telemetry scripts.

tools/cr/cr/targets/chrome_shell.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Module for the chrome_shell targets."""
 
 import cr
 
 
 class ChromeShellTarget(cr.NamedTarget):
   NAME = 'chrome_shell'
   CONFIG = cr.Config.From(
       CR_RUN_ARGUMENTS=cr.Config.Optional('-d "{CR_URL!e}"'),
       CR_TARGET_NAME='ChromeShell',
       CR_PACKAGE='org.chromium.chrome.shell',
       CR_ACTIVITY='.ChromeShellActivity',
   )
 
 
 class ChromeShellTestTarget(cr.NamedTarget):
   NAME = 'chrome_shell_test'
   CONFIG = cr.Config.From(
-      CR_TARGET_NAME='ChromiumTestShellTest',
+      CR_TARGET_NAME='ChromeShellTest',
   )