gh-103646: Remove --include-pip-user from default APPX package build (GH-105064)

Author: zooba

Misc/NEWS.d/next/Windows/2023-05-29-17-09-31.gh-issue-103646.U8oGQx.rst

@@ -0,0 +1,5 @@
+When installed from the Microsoft Store, ``pip`` no longer defaults to
+per-user installs. However, as the install directory is unwritable, it
+should automatically decide to do a per-user install anyway. This should
+resolve issues when ``pip`` is passed an option that conflicts with
+``--user``.

PC/layout/support/options.py

@@ -41,7 +41,6 @@ def public(f):
         "options": [
             "stable",
             "pip",
-            "pip-user",
             "tcltk",
             "idle",
             "venv",