Make golden-ratio modeline string a variable

[yeminzhang]

Hi,

Now the modeline string of golden-ratio is hardcoded to " Golden". I hope this could be made as a variable. I have golden-ratio-mode enabled globally, so there is no need to see a "Golden" string on the status bar which is already quite short of space. Thanks.

[syl20bnr]

If you use use-package you can use :diminish keyword, otherwise you can use directly the package diminish. It is easy to hide any lighter with it, call (diminish 'golden-ratio-mode).