Mk: depulicate WWW information

Stop duplication the WWW informations within the packages

Since september 2022 the WWW lines has been moved from pkg-descr
to Makefile, however the ports tree continued to push this info
at the end of pkg-descr automatically, which is a duplicated
information.

Differential Revision:	https://reviews.freebsd.org/D41523
Reviewed by:		mat

Mk/Scripts/create-manifest.sh

@@ -86,15 +86,7 @@ if [ -n "${dp_PKG_NOTES}" ]; then
 fi
 
 # Copy the pkg-descr file
-{
+cp ${dp_DESCR} ${dp_METADIR}/+DESC
-	cat ${dp_DESCR}
-	if [ -n "${dp_WWW}" ] && ! grep -q '^WWW: ' ${dp_DESCR}; then
-			echo
-			for www in ${dp_WWW}; do
-				echo "WWW: ${www}"
-			done
-	fi
-} > ${dp_METADIR}/+DESC
 
 # Concatenate all the scripts
 output_files=