How_can_I_disable_SNMPv3 - fenner/net-snmp-wiki-experiment GitHub Wiki
Question
How do I disable SNMPv3 when there is no --disable-snmpv3 option to configure
Answer
You can't.
What you can do is to remove the snmpv3mib and the vacm-mib, and since that means there will be no need for any hashing or security code you could also remove those parts so the end result is that you add
--with-out-mib-modules=snmpv3mib,mibII/vacm --disable-privacy \
--disable-md5 --without-openssl
to your configure line