net/czmq: Update to 4.1.1

• Explicitly disable docs: it requires xmlto/asciidoc (which is fine), but then fails to build using a packaged mkman (perl) script. Isolate the issue separately from this update.
• Remove MAKE_ENV override to build verbosely, the build is verbose now by default
• Remove all patches (upstreamed)

Changelog:

https://github.com/zeromq/czmq/blob/v4.1.1/NEWS

PR: 229687
Requested by: yuri