Discard the extra node binary.

We now use atom-shell's binary to execute scripts.

script/lib/util.py

@@ -87,10 +87,3 @@ def safe_mkdir(path):
   except OSError as e:
     if e.errno != errno.EEXIST:
       raise
-
-
-def get_node_path():
-  node = os.path.join(os.path.dirname(__file__), '..', '..', 'node', 'node')
-  if sys.platform == 'win32' or sys.platform == 'cygwin':
-    node += '.exe'
-  return node