remove unused stylesheet, cleanup

source/assets/sass/vendor/_prism-ghcolors.css

@@ -1,122 +0,0 @@
-/**
- * GHColors theme by Avi Aryan (http://aviaryan.in)
- * Inspired by Github syntax coloring
- */
-
-code[class*="language-"],
-pre[class*="language-"] {
-	color: #393A34;
-	font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace;
-	direction: ltr;
-	text-align: left;
-	white-space: pre;
-	word-spacing: normal;
-	word-break: normal;
-	font-size: .9em;
-	line-height: 1.2em;
-
-	-moz-tab-size: 4;
-	-o-tab-size: 4;
-	tab-size: 4;
-
-	-webkit-hyphens: none;
-	-moz-hyphens: none;
-	-ms-hyphens: none;
-	hyphens: none;
-}
-
-pre > code[class*="language-"] {
-	font-size: 1em;
-}
-
-pre[class*="language-"]::-moz-selection, pre[class*="language-"] ::-moz-selection,
-code[class*="language-"]::-moz-selection, code[class*="language-"] ::-moz-selection {
-	background: #b3d4fc;
-}
-
-pre[class*="language-"]::selection, pre[class*="language-"] ::selection,
-code[class*="language-"]::selection, code[class*="language-"] ::selection {
-	background: #b3d4fc;
-}
-
-/* Code blocks */
-pre[class*="language-"] {
-	padding: 1em;
-	margin: .5em 0;
-	overflow: auto;
-	border: 1px solid #dddddd;
-	background-color: white;
-}
-
-/* Inline code */
-:not(pre) > code[class*="language-"] {
-	padding: .2em;
-	padding-top: 1px;
-	padding-bottom: 1px;
-	background: #f8f8f8;
-	border: 1px solid #dddddd;
-}
-
-.token.comment,
-.token.prolog,
-.token.doctype,
-.token.cdata {
-	color: #999988;
-	font-style: italic;
-}
-
-.token.namespace {
-	opacity: .7;
-}
-
-.token.string,
-.token.attr-value {
-	color: #e3116c;
-}
-
-.token.punctuation,
-.token.operator {
-	color: #393A34; /* no highlight */
-}
-
-.token.entity,
-.token.url,
-.token.symbol,
-.token.number,
-.token.boolean,
-.token.variable,
-.token.constant,
-.token.property,
-.token.regex,
-.token.inserted {
-	color: #36acaa;
-}
-
-.token.atrule,
-.token.keyword,
-.token.attr-name,
-.language-autohotkey .token.selector {
-	color: #00a4db;
-}
-
-.token.function,
-.token.deleted,
-.language-autohotkey .token.tag {
-	color: #9a050f;
-}
-
-.token.tag,
-.token.selector,
-.language-autohotkey .token.keyword {
-	color: #00009f;
-}
-
-.token.important,
-.token.function,
-.token.bold {
-	font-weight: bold;
-}
-
-.token.italic {
-	font-style: italic;
-}

source/assets/sass/vendor/_syntax-accessible.scss

@@ -1,5 +1,3 @@
-// @@@ These definitions no longer match the added classes...
-
 @use '../functions';
 
 /**
@@ -21,10 +19,6 @@ pre[class*="language-"] {
 
 .token table td { padding: functions.sl-px-to-rem(5px); }
 .token table pre { margin: 0; }
-.token .cm {
-  color: #656556;
-  font-style: italic;
-}
 
 .token.comment,
 .token.prolog,
@@ -34,11 +28,11 @@ pre[class*="language-"] {
 	font-style: italic;
 }
 
-[class*="language-css"]  {
-  & .token.comment {
+.token.comment {
+  [class*="language-css"] & {
     color: #006666;
   }
-}
+ }
 
 .token.namespace {
 	opacity: .7;