sys-fs/aufs-util: do not perform all compilation during src_install

Upstream cleverly has the first target be "pre" and somewhere later on
the "all" target actually does what is wanted.

Signed-off-by: Eli Schwartz <eschwartz93@gmail.com>
Signed-off-by: Sam James <sam@gentoo.org>

sys-fs/aufs-util/aufs-util-4.14_p20190603.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -45,3 +45,7 @@ src_prepare() {
 	export STRIP=true
 	default
 }
+
+src_compile() {
+	emake all
+}