drop unused csscomb rules

.csscomb.json

@@ -1,25 +0,0 @@
-{
-    "remove-empty-rulesets": true,
-    "always-semicolon": true,
-    "color-case": "lower",
-    "block-indent": "\t",
-    "color-shorthand": true,
-    "element-case": "lower",
-    "eof-newline": true,
-    "leading-zero": false,
-    "quotes": "double",
-    "sort-order-fallback": "abc",
-    "space-before-colon": "",
-    "space-after-colon": " ",
-    "space-before-combinator": " ",
-    "space-after-combinator": " ",
-    "space-between-declarations": "\n",
-    "space-before-opening-brace": " ",
-    "space-after-opening-brace": "\n",
-    "space-after-selector-delimiter": "\n",
-    "space-before-selector-delimiter": "",
-    "space-before-closing-brace": "\n",
-    "strip-spaces": true,
-    "unitless-zero": true,
-    "vendor-prefix-align": true
-}