Remove expired ports:

lang/julia: metaport, useless without any consumers
2020-12-31 lang/julia10: Uses Python 2.7 which is EOLed upstream
2020-12-31 lang/spidermonkey24: Uses Python 2.7 which is EOLed upstream
2020-12-31 mail/getmail: Uses deprecated version of python
2020-12-31 security/broccoli: Depends lang/python27 which is EOLed upstream
2020-12-31 security/orthrus: Uses Python 2.7 version of scons, and Python 2.7 which is EOLed upstream
2020-12-31 sysutils/ori: Uses Python 2.7 version of scons, and Python 2.7 which is EOLed upstream
2020-12-31 sysutils/osquery: Uses Python 2.7 which is EOLed upstream
2020-12-31 www/cliqz: Uses deprecated version of python
2020-12-31 www/trac: Uses Python 2.7 which is EOLed upstream
2020-12-31 www/trac-accountmanager: Uses Python 2.7 which is EOLed upstream