ghc: update to 8.4.4.

Disabling Sphinx again as it seems to be broken upstream;
docs are online anyway.

srcpkgs/ghc/template

@@ -1,13 +1,13 @@
 # Template file for 'ghc'
 pkgname=ghc
 # Keep this synchronized with http://www.stackage.org/lts
-version=8.4.3
+version=8.4.4
 revision=1
 wrksrc="ghc-${version%[!0-9]}"
 patch_args="-Np1"
 build_style=gnu-configure
 configure_args="--with-system-libffi"
-hostmakedepends="automake docbook-xsl ghc-bin libxslt python-Sphinx"
+hostmakedepends="automake docbook-xsl ghc-bin libxslt"
 makedepends="gmp-devel libffi-devel libnuma-devel ncurses-devel"
 depends="perl gcc libffi-devel gmp-devel libnuma-devel"
 short_desc="Glorious Haskell Compiler"
@@ -15,7 +15,7 @@ maintainer="Leah Neukirchen <leah@vuxu.org>"
 license="BSD"
 homepage="http://www.haskell.org/ghc/"
 distfiles="http://www.haskell.org/ghc/dist/${version%[!0-9]}/${pkgname}-${version%[!0-9]}-src.tar.xz"
-checksum=ae47afda985830de8811243255aa3744dfb9207cb980af74393298b2b62160d6
+checksum=11117735a58e507c481c09f3f39ae5a314e9fbf49fc3109528f99ea7959004b2
 nocross=yes  # ask leah2 before wasting time trying to do that
 _bindir="/usr/lib/${pkgname}-${version}/bin"
 nopie_files="