archlinux: remove pam configuration for su and su-l

The related bug should have been fixed in issue #2903
(https://github.com/QubesOS/qubes-issues/issues/2903)

archlinux/PKGBUILD

@@ -24,7 +24,6 @@ changelog=
 
 source=(
     PKGBUILD.qubes-ensure-lib-modules.service PKGBUILD.qubes-update-desktop-icons.hook
-    PKGBUILD-qubes-noupgrade.conf
     PKGBUILD-qubes-repo-3.2.conf
     PKGBUILD-qubes-repo-4.0.conf
 )
@@ -82,7 +81,6 @@ package() {
 
     # Install pacman.d drop-ins (at least 1 drop-in must be installed or pacman will fail)
     mkdir -p "${pkgdir}/etc/pacman.d"
-    install -m 644 "$srcdir/PKGBUILD-qubes-noupgrade.conf" "${pkgdir}/etc/pacman.d/10-qubes-noupgrade.conf"
 
     # Install pacman repository
     release=$(echo "$pkgver" | cut -d '.' -f 1,2)

archlinux/PKGBUILD-qubes-noupgrade.conf

@@ -1,3 +0,0 @@
-[options]
-NoUpgrade = etc/pam.d/su
-NoUpgrade = etc/pam.d/su-l