Add a run_eslint wrapper script

common/node_runner/node_runner/node_util.py

Index: common/node_runner/node_runner/node_util.py
diff --git a/common/node_runner/node_runner/node_util.py b/common/node_runner/node_runner/node_util.py
index a51daa569035a8271cb1676669e7986d3041bc67..841c3d0a6084eed4664a3206deba634c35008f26 100644
--- a/common/node_runner/node_runner/node_util.py
+++ b/common/node_runner/node_runner/node_util.py
@@ -60,21 +60,3 @@ def GetNodeModulesPath():
     # Escape path on Windows because it's very long and must be passed to NTFS.
     path = u'\\\\?\\' + path
   return path
-
-
-def RunEslint(filenames=None):
-  cmd = [
-      GetNodePath(),
-      os.path.join(GetNodeModulesPath(), 'eslint', 'bin', 'eslint.js'),
-      '--color',
-      '--config',
-      os.path.join(py_utils.GetCatapultDir(), 'common', 'eslint', '.eslintrc'),
-      '--rulesdir',
-      os.path.join(py_utils.GetCatapultDir(), 'common', 'eslint', 'rules')
-  ]
-  if filenames:
-    cmd += filenames
-  try:
-    return subprocess.check_output(cmd, stderr=subprocess.STDOUT)
-  except subprocess.CalledProcessError as e:
-    return e.output