update /tools to new slash command arch (#4236)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: matt korwel <matt.korwel@gmail.com>

packages/cli/src/ui/App.tsx

@@ -390,7 +390,6 @@ const App = ({ config, settings, startupWarnings = [], version }: AppProps) => {
     openAuthDialog,
     openEditorDialog,
     toggleCorgiMode,
-    showToolDescriptions,
     setQuittingMessages,
     openPrivacyNotice,
   );