Remove unused dependency (#599)

Author: chrmarti

package-lock.json

@@ -3743,7 +3743,6 @@
 		"@anthropic-ai/sdk": "^0.56.0",
 		"@humanwhocodes/gitignore-to-minimatch": "1.0.2",
 		"@microsoft/tiktokenizer": "^1.0.10",
-		"@roamhq/mac-ca": "^1.0.7",
 		"@vscode/copilot-api": "^0.1.4",
 		"@vscode/extension-telemetry": "^1.0.0",
 		"@vscode/l10n": "^0.0.18",