slack-desktop: update to 2.6.3.

slack-desktop have dropped support for 32-bit as of 2.2.1 it seems.

srcpkgs/slack-desktop/template

@@ -1,8 +1,8 @@
 # Template file for 'slack-desktop'
 pkgname=slack-desktop
-version=2.1.1
+version=2.6.3
 revision=1
-only_for_archs="i686 x86_64"
+only_for_archs="x86_64"
 short_desc="A messaging app for teams"
 maintainer="Diogo Leal <diogo@diogoleal.com>"
 license="Proprietary"
@@ -10,25 +10,17 @@ homepage="https://slack.com/"
 repository="nonfree"
 restricted=yes
 nopie=yes
-
-if [ "${XBPS_TARGET_MACHINE}" = "x86_64" ];then
-	_debarch=amd64
-	checksum=03ee895a8ce6e4eda3105e2eee9f1353a0798a9dcbbc3b1b384dad599e2ed533
-else
-	_debarch=i386
-	checksum=f023118d978cd0f27d36f9c816edcddb9e192b45a8c1f51079378525bdcf8e43
-fi
-
-distfiles="https://slack-ssb-updates.global.ssl.fastly.net/linux_releases/slack-desktop-${version}-${_debarch}.deb"
+checksum=ec11c05e954b1291f2503bbbd9d0b371190bdf157b2d973e54fa42418ea1e2f0
+distfiles="https://slack-ssb-updates.global.ssl.fastly.net/linux_releases/slack-desktop-${version}-amd64.deb"
 
 do_extract() {
-	ar x ${XBPS_SRCDISTDIR}/${pkgname}-${version}/slack-desktop-${version}-${_debarch}.deb
+	ar x ${XBPS_SRCDISTDIR}/${pkgname}-${version}/slack-desktop-${version}-amd64.deb
 	cd ${wrksrc}
 	tar xfJ data.tar.xz
 }
 
 do_install() {
-	vlicense usr/share/doc/slack/copyright
+	vlicense usr/share/doc/slack-desktop/copyright
 	rm -rf usr/share/doc
 	rm -rf etc
 	rm -rf usr/share/lintian