Remove unneeded duplicate error stylesheet

styles/err_styles.css

@@ -1,49 +0,0 @@
-/* CSS for System64.dev v2 Error Pages, Under MIT License. (6.6.23) */
-
-/* decoration */
-body {
-    background-image: url("/img/bg.jpg");
-    background-repeat: no-repeat;
-}
-
-/* positioning and sizing */
-
-.container { /* not docker or kubernetes, sadly. */
-    display: flex;
-    flex-direction: column;
-}
-
-div {
-    margin: auto;
-    align-items: center;
-}
-
-img {
-    width: 20%;
-    height: auto;
-}
-
-/* fonts */
-
-@import url('https://fonts.googleapis.com/css2?family=Bitter:wght@600&display=swap'); /* Bitter */ 
-@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap'); /* Share Tech Mono */
-
-h1 {
-    font-family: 'Bitter', serif;
-    color: white;
-    font-size: 50px;
-    text-align: center;
-}
-p {
-    font-family: 'Bitter', serif;
-    color: white;
-    text-align: center;
-}
-p.tiny {
-    font-size: 12px;
-    margin-top: -5px;
-}
-a {
-    color: white;
-    font-family: 'Bitter', serif;
-}