Revert "Enable Emacs keybindings in the CodeMirror editor"

This reverts commit c8f9b00.

Author: dhilst

editors/codemirror/README.md

@@ -11,9 +11,6 @@ provides:
   WebAssembly by the [`algae-wasm`](../../algae-wasm) crate.
 - **Error reporting** — kernel diagnostics rendered as inline squiggles, gutter
   markers, and a results pane.
-- **Emacs keybindings** — the `@replit/codemirror-emacs` keymap (`C-a`/`C-e`,
-  `C-k`, `C-w`/`M-w`/`C-y`, `C-s`/`C-r`, mark & kill-ring, …). `Ctrl-Enter` still
-  runs the checker.
 
 ## Build
 

editors/codemirror/package-lock.json

@@ -10,15 +10,12 @@
     "build:dev": "esbuild src/index.js --bundle --format=esm --outfile=dist/algae-editor.js --sourcemap"
   },
   "dependencies": {
-    "@codemirror/autocomplete": "^6.0.0",
     "@codemirror/commands": "^6.0.0",
     "@codemirror/language": "^6.0.0",
     "@codemirror/lint": "^6.0.0",
-    "@codemirror/search": "^6.0.0",
     "@codemirror/state": "^6.0.0",
     "@codemirror/view": "^6.0.0",
-    "@lezer/highlight": "^1.0.0",
-    "@replit/codemirror-emacs": "^6.1.0"
+    "@lezer/highlight": "^1.0.0"
   },
   "devDependencies": {
     "esbuild": "^0.24.0"

editors/codemirror/package.json

@@ -12,7 +12,6 @@ import {
   highlightActiveLineGutter, drawSelection, highlightSpecialChars,
 } from "@codemirror/view";
 import { history, defaultKeymap, historyKeymap, indentWithTab } from "@codemirror/commands";
-import { emacs } from "@replit/codemirror-emacs";
 import { bracketMatching } from "@codemirror/language";
 import { lintGutter, lintKeymap } from "@codemirror/lint";
 import { algae } from "./algae-lang.js";
@@ -153,14 +152,10 @@ export function mountAlgaeEditor(parent, opts = {}) {
     drawSelection(),
     highlightActiveLine(),
     bracketMatching(),
-    // Ctrl-Enter / Cmd-Enter runs the checker (same as the Check button). Kept
-    // ahead of the Emacs keymap so it always wins.
+    // Ctrl-Enter / Cmd-Enter runs the checker (same as the Check button).
     keymap.of([
       { key: "Mod-Enter", run: (v) => { doCheck(v); return true; } },
     ]),
-    // Emacs-style keybindings (C-a, C-e, C-k, C-w, M-w, C-y, C-s, …) plus the
-    // mark/kill-ring behavior. Installs its own high-precedence keymap.
-    emacs(),
     keymap.of([...defaultKeymap, ...historyKeymap, ...lintKeymap, indentWithTab]),
     algae(),
     baseTheme,