community/chelf: remove empty variable definitions

also remove $pkgname from source url

community/chelf/APKBUILD

@@ -8,10 +8,7 @@ url="https://github.com/Gottox/chelf"
 arch="all"
 options="!check"  # No test suite.
 license="BSD-2-Clause"
-depends=""
-makedepends=""
-subpackages=""
-source="$pkgname-$pkgver.tar.xz::https://distfiles.adelielinux.org/source/$pkgname-$pkgver.txz"
+source="$pkgname-$pkgver.tar.xz::https://distfiles.adelielinux.org/source/chelf-$pkgver.txz"
 
 build() {
 	make