Add comment about removing xbuildenv check

Co-Authored-By: Gyeongjae Choi <[email protected]>

pyodide_build/cli/skeleton.py

@@ -51,16 +51,23 @@ def new_recipe_pypi(
     Create a new package recipe from PyPI or update an existing recipe.
     """
 
+    # Determine the recipe directory. If it is specified by the user, we use that;
+    # otherwise, we assume that the recipe directory is the ``packages`` directory
+    # in the root of the Pyodide tree, without the need to initialize the
+    # cross-build environment.
+    #
+    # It is unlikely that a user will run this command outside of the Pyodide
+    # tree, so we do not need to initialize the environment at this stage.
+
+    cwd = Path.cwd()
+    root = build_env.search_pyodide_root(curdir=cwd)
+
+    if not root:
+        root = cwd
+
     if recipe_dir:
         recipe_dir_ = Path(recipe_dir)
     else:
-        cwd = Path.cwd()
-
-        if build_env.in_xbuildenv():
-            root = cwd
-        else:
-            root = build_env.search_pyodide_root(cwd) or cwd
-
         recipe_dir_ = root / "packages"
 
     if update or update_patched: