Remove/replace vim-coloresque

[AndrewRadev]

vim-coloresque is currently overriding iskeyword in a rather invasive way. See here. The issue may be fixed soon, but it's still unclear how and whether it'll be fixed.

Even if the setl change is implemented, the plugin affects all vim files, which seems a bit much to me.

Perhaps vim-polyglot could go back to css-color, undoing issue #11. Alternatively, maybe the author will fix the issues in a reasonable way, but I'd still consider disabling vim-coloresque for now and monitoring how the whole thing works out.

[sheerun]

Bummer. I'll revert back to css-color.