Remove deprecated stylelint rules which are handled by prettier (#10325)

.stylelintrc.js

@@ -1,19 +1,13 @@
 module.exports = {
-    extends: ["stylelint-config-standard", "stylelint-config-prettier"],
+    extends: ["stylelint-config-standard"],
     customSyntax: require("postcss-scss"),
     plugins: ["stylelint-scss"],
     rules: {
-        "color-hex-case": null,
         "comment-empty-line-before": null,
         "declaration-empty-line-before": null,
         "length-zero-no-unit": null,
         "rule-empty-line-before": null,
         "color-hex-length": null,
-        "max-empty-lines": 1,
-        "no-eol-whitespace": true,
-        "number-no-trailing-zeros": null,
-        "number-leading-zero": null,
-        "selector-list-comma-newline-after": null,
         "at-rule-no-unknown": null,
         "no-descending-specificity": null,
         "no-empty-first-line": true,
@@ -35,7 +29,6 @@ module.exports = {
         "custom-property-pattern": null,
         "selector-id-pattern": null,
         "keyframes-name-pattern": null,
-        "string-quotes": null,
         "alpha-value-notation": null,
         "color-function-notation": null,
         "selector-not-notation": null,