main/postmarketos-ui-gnome: don't mark UI as hardware accelerated (MR 3041)

While GNOME does require hardware acceleration, GNOME's X11 mode
(not sure about Wayland mode) does work without DRM support, so
it works fine with software rendering on devices without a working
GPU as long as fbdev works.

I think this raises the question of whether we should rename
pmb:hw-accel to pmb:drm as e.g. Phosh should work without 3D
acceleration if a device e.g. uses a kernel with SimpleDRM support,
but that is out of scope for this MR/commit.

Effectively reverts 638362de63

[ci:skip-vercheck]

main/postmarketos-ui-gnome/APKBUILD

@@ -17,7 +17,7 @@ depends="
 	"
 install="$pkgname.post-install $pkgname.post-upgrade"
 source="firefox-wayland.sh"
-options="!check pmb:gpu-accel"
+options="!check"
 
 package() {
 	install -Dm755 \