Remove "columns.scss"

src/styles/application.scss

@@ -11,7 +11,6 @@
 @use 'components/modal';
 @use 'components/compose-form';
 @use 'components/status';
-@use 'components/columns';
 @use 'components/search';
 @use 'components/aliases';
 @use 'components/icon';

src/styles/components/columns.scss

@@ -1,16 +0,0 @@
-.empty-column-indicator,
-.error-column {
-  @apply bg-primary-50 dark:bg-gray-700 text-gray-900 dark:text-gray-300 text-center p-10 flex flex-1 items-center justify-center min-h-[160px] rounded-lg;
-
-  @supports (display: grid) { // hack to fix Chrome <57
-    contain: strict;
-  }
-
-  & > span {
-    @apply max-w-[400px];
-  }
-
-  a {
-    @apply text-primary-600 dark:text-primary-400 no-underline hover:underline;
-  }
-}