Remove WWW entries moved into port Makefiles
Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.
This commit removes the WWW: lines of moved-over URLs from these
Approved by: portmgr (tcberner)
www/qt6-serialbus: new port
This adds the missing Qt 6 serialbus module to the tree.
As with the rest of the Qt 6 ports, we first need to figure
out what is actually required by other ports before we can