remove unnecessary default border-color (laravel#144)

Author: rrmesquita

resources/css/app.css

@@ -58,24 +58,6 @@
   --color-sidebar-ring: var(--sidebar-ring);
 }
 
-/*
-  The default border color has changed to `currentColor` in Tailwind CSS v4,
-  so we've added these compatibility styles to make sure everything still
-  looks the same as it did with Tailwind CSS v3.
-
-  If we ever want to remove these styles, we need to add an explicit border
-  color utility to any element that depends on these defaults.
-*/
-@layer base {
-  *,
-  ::after,
-  ::before,
-  ::backdrop,
-  ::file-selector-button {
-    border-color: var(--color-gray-200, currentColor);
-  }
-}
-
 :root {
   --background: oklch(1 0 0);
   --foreground: oklch(0.145 0 0);