Remove unused Tailwind CSS files

tailwind.config.js

@@ -1,8 +0,0 @@
-module.exports = {
-  content: [
-    './renderer/**/*.{js,jsx,ts,tsx,html}',
-    './*.html',
-  ],
-  theme: { extend: {} },
-  plugins: [],
-}

tailwind.css

@@ -1,3 +0,0 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;