sci-geosciences/mapserver: Apply php-ext-source-r3 changes to src_unpack

sci-geosciences/mapserver/mapserver-7.0.5.ebuild

@@ -83,12 +83,10 @@ pkg_setup() {
 }
 
 src_unpack() {
-	# unpack A and then copy the php thingies into workdir/php-slot
-	php-ext-source-r3_src_unpack
-	# HACK: and then remove it and replace by symlink
+	default
+	# HACK: Make symlinks for php targets
 	local slot
 	for slot in $(php_get_slots); do
-		rm -rf "${WORKDIR}/${slot}" || die
 		ln -s "${PHP_EXT_S}" "${WORKDIR}/${slot}" || die
 	done
 }