Remove highlight package

Author: marijnh

.gitignore

@@ -22,7 +22,6 @@ package-lock.json
 /tooltip
 /search
 /lint
-/highlight
 /stream-parser
 /autocomplete
 /comment

bin/packages.js

@@ -18,7 +18,6 @@ exports.core = [
   "closebrackets",
   "search",
   "lint",
-  "highlight",
   "stream-parser",
   "autocomplete",
   "comment",

tsconfig.json

@@ -28,7 +28,6 @@
       "@codemirror/tooltip": ["./tooltip/src/tooltip.ts"],
       "@codemirror/search": ["./search/src/search.ts"],
       "@codemirror/lint": ["./lint/src/lint.ts"],
-      "@codemirror/highlight": ["./highlight/src/highlight.ts"],
       "@codemirror/stream-parser": ["./stream-parser/src/stream-parser.ts"],
       "@codemirror/autocomplete": ["./autocomplete/src/index.ts"],
       "@codemirror/comment": ["./comment/src/comment.ts"],