upgpkg: discord 0.0.112-2: fix wayland

Fix Wayland detection currently being broken in Electron 38
Remove now obsolete flags

.SRCINFO

@@ -1,7 +1,7 @@
 pkgbase = discord_arch_electron
 	pkgdesc = Discord using system provided electron for increased security and performance
 	pkgver = 0.0.112
-	pkgrel = 1
+	pkgrel = 2
 	epoch = 1
 	url = https://discord.com
 	install = discord_arch_electron.install

PKGBUILD

@@ -10,7 +10,7 @@ _pkgname=discord
 _electron=electron
 pkgname=${_pkgname}_arch_electron
 pkgver=0.0.112
-pkgrel=1
+pkgrel=2
 epoch=1
 pkgdesc="Discord using system provided ${_electron} for increased security and performance"
 arch=('any')

discord-launcher.sh

@@ -32,7 +32,13 @@ for line in "${MAPFILE[@]}"; do
 	fi
 done
 
+if [[ -e "${XDG_RUNTIME_DIR:-}/${WAYLAND_SOCKET:-}" || -e "${WAYLAND_DISPLAY:-}" || "${XDG_SESSION_TYPE:-}" == "wayland" ]]; then
+	# work around electron's broken wayland detection
+	# TODO: remove when Arch updates to an electron release that includes the fix
+	# https://github.com/electron/electron/pull/48301
+	flags+=("--ozone-platform=wayland")
+fi
+
 exec /usr/bin/${electron} \
 	/usr/share/${name}/resources/app.asar \
-	--ozone-platform-hint=auto \
 	"${flags[@]}" "$@"