switch to openpkg.pgp and do not pre-configure because it is useless

openpkg/README

@@ -55,7 +55,7 @@
   wrap1.sh ................ wrapper script for generating openpkg-X.X-X.src.sh
   wrap2.sh ................ wrapper script for generating openpkg-X.X-X.YYY-YYYY-ZZ.sh 
 
-  pubring.gpg ............. the OpenPGP public key of "The OpenPKG Project"
+  openpkg.pgp ............. the OpenPGP public key of "The OpenPKG Project"
 
   shtool .................. the pre-generated GNU shtool program
 

openpkg/rpmmacros

@@ -155,10 +155,8 @@
 %_source_payload         w9.bzdio
 %_binary_payload         w9.bzdio
 
-#   override package signature verification details
+#   package signature type is OpenPGP via GnuPG
 %_signature              gpg
-%_gpg_path               %{l_prefix}/etc/openpkg
-%_gpg_name               The OpenPKG Project <openpkg@openpkg.org>
 
 #   the default repository list
 %l_repo_cache            %{l_root_rpm}/PKG/