sys-cluster/redset: builds with mpi even if USE="-mpi"

just got rid of src_configure and IUSE="mpi"
also made discription a bit shorter to make repoman
happy

Package-Manager: Portage-2.3.89, Repoman-2.3.20
Signed-off-by: Andrew Ammerlaan <andrewammerlaan@riseup.net>

sys-cluster/redset/redset-0.0.4.ebuild

@@ -5,20 +5,17 @@ EAPI="7"
 
 inherit cmake-utils
 
-DESCRIPTION="Low-level distributed erasure coding library to protect datasets of MPI applications"
+DESCRIPTION="Low-level distributed erasure coding lib to protect datasets of MPI applications"
 HOMEPAGE="https://github.com/ECP-VeloC/redset"
 SRC_URI="https://github.com/ECP-VeloC/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 
 LICENSE="MIT"
 SLOT="0"
 KEYWORDS="~amd64"
-IUSE="mpi test"
-RESTRICT="!test? ( test )"
 
 RDEPEND="
-	mpi? ( virtual/mpi )
-
-	sys-cluster/KVTree
+	virtual/mpi
+	sys-cluster/KVTree[mpi]
 	sys-cluster/rankstr
 	sys-libs/zlib
 "
@@ -27,8 +24,6 @@ BDEPEND="
 	>=dev-util/cmake-2.8
 "
 
-DOCS=( README.md )
-
 src_prepare() {
 	#do not build static library
 	sed -i '/redset-static/d' src/CMakeLists.txt
@@ -36,13 +31,6 @@ src_prepare() {
 	cmake-utils_src_prepare
 }
 
-src_configure() {
-	local mycmakeargs=(
-		-DMPI="$(usex mpi "" OFF)"
-	)
-	cmake-utils_src_configure
-}
-
 src_install() {
 	cmake-utils_src_install
 	dodoc -r doc/rst/.