Remove references to installed Ruby on Win32 in README.
Remove references to installed Ruby on Win32 in README.

wyrover/titanium_desktop,jvkops/titanium_desktop,jvkops/titanium_desktop,appcelerator/titanium_desktop,appcelerator/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop,appcelerator/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop,wyrover/titanium_desktop,appcelerator/titanium_desktop,wyrover/titanium_desktop,jvkops/titanium_desktop,jvkops/titanium_desktop,appcelerator/titanium_desktop,wyrover/titanium_desktop