make-release: Remove unnecessary knc-asic/{*.rbf,*system,waas} from release source

make-release

@@ -48,6 +48,7 @@ git submodule update --init
 		git archive --prefix "$sw/ccan-upstream/" --format tar HEAD ccan/{build_assert,cast,compiler,opt,typesafe_cb} licenses/{CC0,GPL-3,LGPL-2.1}
 	)
 } | tar -xivp
+rm -r "$sw"/knc-asic/{*.rbf,*system,waas}
 ./gen-version.sh >"$sw"/version.h
 cd "$sw"
 NOSUBMODULES=1 \