main/postmarketos-ui-phosh: don't set GDK_BACKEND=wayland (MR 2235)

This causes issues with some programs, chiefly that gsd-xsetttings
does not start properly. GDK_BACKEND=wayland is only really
necessary to make Firefox run in Wayland mode anyway - other GTK 3/4
apps use it automatically. Firefox will be set to use Wayland via a
following commit.

main/postmarketos-ui-phosh/APKBUILD

 # Maintainer: Bart Ribbers <bribbers@disroot.org>
 pkgname=postmarketos-ui-phosh
-pkgver=10
+pkgver=11
 pkgrel=0
 pkgdesc="(Wayland) Mobile UI developed for the Librem 5 (works only with numeric passwords!)"
 url="https://puri.sm"
@@ -51,7 +51,6 @@ source="
 	01-phoc-scaling
 	02-gnome-software-no-first-run
 	dconf-profile-postmarketos
-	gtk-app-wayland.sh
 	mimeapps.list
 	mpris-proxy.desktop
 	osk.sh
@@ -63,8 +62,6 @@ options="!check"
 package() {
 	install -Dm644 "$srcdir"/000-gschema.override \
 		"$pkgdir"/usr/share/glib-2.0/schemas/000-postmarketos.gschema.override
-	install -Dm755 "$srcdir"/gtk-app-wayland.sh \
-		"$pkgdir"/etc/profile.d/gtk-app-wayland.sh
 	install -Dm755 "$srcdir"/osk.sh \
 		"$pkgdir"/usr/bin/osk-wayland
 	install -Dm755 "$srcdir"/dconf-profile-postmarketos \
@@ -91,7 +88,6 @@ b8f9bf9174c30ca5e7fe7533d119af18c73bd7c2509d7cfb1ef49a15cd1e28a35dad467d39f34d1c
 4a60c08c86688f2d92820bc07305fe1bcff54986d29ee5dd84c7902ea5247b73b96f7453d2da9931a19903b2f5825b8a636f92edcf89bc205a7d389defea0b0e  01-phoc-scaling
 834d1c558b6a9ca26345928895a5436919aab13f944410240516953a13f8fdafae995af4b1baeee560a800c405a4d67c44bb92499bf8cacae7a17f6d9893577e  02-gnome-software-no-first-run
 e00756c2c056f68123d877f2f6a5ad3434ca7851095f021c26831c081728b821cf7947ba08d6742eee51d93dc83859a7ead553f4dcbc8b6fcefa33ae344ba178  dconf-profile-postmarketos
-57793bb079c76ba3bdcfca7880aa887de11fe80e7a05557b78435e57feabab70fbaeedc42da3aec6f914c35bba8e8ee9918367516eb45ee247f63f694624f179  gtk-app-wayland.sh
 0a376140da36538fd73cbd8305ff97b54d2b82831bab64a3b7167019f1d005752eda4e81ef7c19fd64fcba3a775c9e87fca1a250b55a522a0ee9728ab712f089  mimeapps.list
 9276b4282860229da47b8b690307a8bf8907370fcdebf0be4c2b71f933593e115572e61d846cb13821d51859ec9e53af6de250afa953b42c06cf0ad4905377c3  mpris-proxy.desktop
 4113ef59267e88d205ef1e1aec0ed11ccf817a25c232f2006a538b56fb466fad5025ad445d109e367ca92ee98d9b25f1f9a1a4b9bae2cb80df12a3739d62d10a  osk.sh

main/postmarketos-ui-phosh/gtk-app-wayland.sh

-#!/bin/sh
-
-# Most pure GTK3 apps use wayland by default, but some,
-# like Firefox, need the backend to be explicitely selected.
-export GDK_BACKEND=wayland