Remove deprecated rules

[bryanjtc]

• The "block-closing-brace-newline-after" rule is deprecated.
• The "max-line-length" rule is deprecated.
• The "media-query-list-comma-newline-before" rule is deprecated.
• The "string-quotes" rule is deprecated.

Option 1: Add https://www.npmjs.com/package/stylelint-stylistic
Option 2: Add https://github.com/prettier/stylelint-prettier