Do not set context keys along with painting background

apps/vscode/src/providers/background.ts

@@ -22,7 +22,6 @@ import { isQuartoDoc, kQuartoDocSelector } from "../core/doc";
 import { MarkdownEngine } from "../markdown/engine";
 import { isExecutableLanguageBlock } from "quarto-core";
 import { vscRange } from "../core/range";
-import { mainLanguage } from "../vdoc/vdoc";
 
 export function activateBackgroundHighlighter(
   context: vscode.ExtensionContext,
@@ -163,10 +162,6 @@ async function setEditorHighlightDecorations(
       blockRanges.push(vscRange(block.range));
     }
 
-    // expose cell language for use in keybindings, etc
-    const language = mainLanguage(tokens);
-    vscode.commands.executeCommand('setContext', 'quartoLangId', language?.ids[0]);
-
     // find inline executable code
     for (let i = 0; i < editor.document.lineCount; i++) {
       const line = editor.document.lineAt(i);