dev-haskell/alsa-core: remove empty IUSE=""

Signed-off-by: Mark Wright <gienah@gentoo.org>

Author: markwright

dev-haskell/alsa-core/alsa-core-0.5.0.1-r2.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -16,7 +16,6 @@ SRC_URI="https://hackage.haskell.org/package/${P}/${P}.tar.gz"
 LICENSE="BSD"
 SLOT="0/${PV}"
 KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
-IUSE=""
 
 RDEPEND=">=dev-haskell/extensible-exceptions-0.1.1:=[profile?] <dev-haskell/extensible-exceptions-0.2:=[profile?]
 	>=dev-lang/ghc-7.4.1:=