dev-scheme/kawa: drop epatch

Signed-off-by: Sam James <sam@gentoo.org>

dev-scheme/kawa/kawa-1.14-r2.ebuild

@@ -5,7 +5,7 @@ EAPI=6
 
 JAVA_PKG_IUSE="source"
 
-inherit epatch java-pkg-2
+inherit java-pkg-2
 
 DESCRIPTION="Kawa, the Java-based Scheme system & Language Framework"
 HOMEPAGE="https://www.gnu.org/software/kawa/"
@@ -36,6 +36,10 @@ RDEPEND="
 
 xtestsuite="XQTS_${XQTS_Ver}"
 
+PATCHES=(
+	"${FILESDIR}"/${P}.patch
+)
+
 src_unpack() {
 	unpack kawa-${PV}.tar.gz || die
 	if use xqtests; then
@@ -46,7 +50,9 @@ src_unpack() {
 }
 
 src_prepare() {
-	epatch "${FILESDIR}"/${P}.patch
+	default
+
+	java-pkg-2_src_prepare
 }
 
 src_configure() {