remove unused fixture files

tests/fixtures/tailwind-input-import.css

@@ -1,12 +0,0 @@
-@import 'tailwindcss/base';
-
-@import 'tailwindcss/components';
-
-@import 'tailwindcss/utilities';
-
-@responsive {
-  .example {
-    @apply font-bold;
-    color: theme('colors.red.500');
-  }
-}

tests/fixtures/tailwind-input-with-explicit-screen-utilities.css

@@ -1,11 +0,0 @@
-@responsive {
-    .example {
-        color: red;
-    }
-}
-
-@tailwind screens;
-
-.john {
-    content: "wick";
-}

tests/fixtures/tailwind-input.css

@@ -1,12 +0,0 @@
-@tailwind base;
-
-@tailwind components;
-
-@tailwind utilities;
-
-@responsive {
-  .example {
-    @apply font-bold;
-    color: theme('colors.red.500');
-  }
-}

tests/fixtures/tailwind-output-with-explicit-screen-utilities.css

@@ -1,37 +0,0 @@
-.example {
-  color: red;
-}
-
-@media (min-width: 640px) {
-  .sm\:example {
-    color: red;
-  }
-}
-
-@media (min-width: 768px) {
-  .md\:example {
-    color: red;
-  }
-}
-
-@media (min-width: 1024px) {
-  .lg\:example {
-    color: red;
-  }
-}
-
-@media (min-width: 1280px) {
-  .xl\:example {
-    color: red;
-  }
-}
-
-@media (min-width: 1536px) {
-  .\32xl\:example {
-    color: red;
-  }
-}
-
-.john {
-  content: "wick";
-}