dev-libs/c-siphash: remove static libs

They aren't specifically wanted. The build system forces them for the
sake of using as a meson subproject:

> We ended up using both_libraries to ensure this setup always provides
> both, and packaging was meant to just remove libraries it does not need.

Hence, we just remove them. :(

Closes: https://bugs.gentoo.org/958199
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>

dev-libs/c-siphash/c-siphash-1.1.0-r1.ebuild

@@ -25,3 +25,13 @@ DEPEND="
 BDEPEND="
 	virtual/pkgconfig
 "
+
+src_install() {
+	meson_src_install
+
+	# upstream c-util tends to force static libs due to optimizing for
+	# subprojects usage.
+	#
+	# https://github.com/c-util/c-utf8/issues/8
+	rm "${ED}"/usr/$(get_libdir)/libcsiphash-1.a || die
+}