opensp: remove libstdc++-devel from depends.

Both compiler packages depend on it already, and its presence makes it
easy to accidentally create build cycles by putting gcc in the
dependency path when it shouldn't be.

srcpkgs/opensp/template

@@ -1,7 +1,7 @@
 # Template file for 'opensp'
 pkgname=opensp
 version=1.5.2
-revision=8
+revision=9
 wrksrc="OpenSP-${version}"
 build_style=gnu-configure
 configure_args="--enable-http --enable-default-catalog=/usr/share/sgml/catalog"
@@ -27,7 +27,7 @@ post_install() {
 }
 
 opensp-devel_package() {
-	depends="libstdc++-devel ${sourcepkg}>=${version}_${revision}"
+	depends="${sourcepkg}>=${version}_${revision}"
 	short_desc+=" - development files"
 	pkg_install() {
 		vmove usr/include