Revert "Add mise task to start the Expo Go dev server behind a reverse proxy"

This reverts commit 02e43f833f.

mise.toml

@@ -1,16 +0,0 @@
-[tasks.expo]
-description = "Start the Expo Go dev server for the mobile app; set EXPO_ENDPOINT to the public URL of your reverse proxy"
-dir = "app"
-run = """
-#!/usr/bin/env bash
-set -euo pipefail
-if [ -z "${EXPO_ENDPOINT:-}" ]; then
-  echo "EXPO_ENDPOINT is not set." >&2
-  echo "Set it to the public URL your reverse proxy exposes, e.g.:" >&2
-  echo "  EXPO_ENDPOINT=https://expo.example.com mise run expo" >&2
-  exit 1
-fi
-# Expo CLI uses EXPO_PACKAGER_PROXY_URL in place of the LAN/localhost URL when
-# building manifest and QR-code URLs, so Expo Go connects through the proxy.
-EXPO_PACKAGER_PROXY_URL="$EXPO_ENDPOINT" npx expo start
-"""