cleanup theme, we use default in any case (#535)

tailwind.config.js

@@ -1,25 +1,6 @@
-const colors = require('tailwindcss/colors');
-
-function withOpacityValue(variable) {
-  return ({ opacityValue }) => {
-    if (opacityValue === undefined) {
-      return `rgb(var(${variable}))`;
-    }
-    return `rgb(var(${variable}) / ${opacityValue})`;
-  };
-}
-
 module.exports = {
   darkMode: 'class',
   content: ['./pages/**/*.{js,ts,jsx,tsx}', './components/**/*.{js,ts,jsx,tsx}'],
-  theme: {
-    colors: {
-      ...colors,
-      primary: withOpacityValue('--color-primary'),
-      secondary: withOpacityValue('--color-secondary'),
-    },
-    extend: {},
-  },
   plugins: [require('daisyui')],
   daisyui: {
     themes: ['light'],