gyp: revert incorrect quote_cmd fix

Previously I had created a gyp tool fix to quote gyp action
command: microsoft/node-v0.12#1

It looks some related gyp code have changed. The fix is now incorrect.
cmd[0] contains both the action command and its arguments and the fix
quoted it to `"some_command arg_list"`. gyp now generates a "call" to
invoke the action, and it is invalid to `call "some_command arg_list"`.

The right approach is probably for people to ensure some_command is
correctly quoted in gyp file, rather than adding quote in gyp tool.

Anyway, the old issue does not exist now. Previously Node.js gyp action
command was `<(python)`, it is now `python`. So quotes no longer needed.

PR-URL: #52
Reviewed-By: Sandeep Agarwal <Agarwal.Sandeep@microsoft.com>

tools/gyp/pylib/gyp/generator/msvs.py

@@ -354,8 +354,6 @@ def _BuildCommandLineForRuleRaw(spec, cmd, cygwin_shell, has_input_path,
       command = ['type']
     else:
       command = [cmd[0].replace('/', '\\')]
-    if quote_cmd:
-      command = ['"%s"' % i for i in command]
     # Add call before command to ensure that commands can be tied together one
     # after the other without aborting in Incredibuild, since IB makes a bat
     # file out of the raw command string, and some commands (like python) are