Revert "gitolite migration: evaluate repository age"

This is really too slow. It takes a few seconds for each round trip.

Instead I listed all the "Other" repos and shoved that in the
following loop:

for repo in anonbib censorship-timeline check chutney collector community/outreach curriculum erebus guardfraction debian/oonibackend debian/ooniprobe debian/txtorcon debian/tor debian/obfsproxy-legacy debian/obfsproxy debian/pt-websocket debian/flashproxy debian/meek debian/torproject-keyring depictor doctor exonerator fallback-scripts fuzzing-corpora githax https-everywhere metrics-base metrics-cloud metrics-lib metrics-tasks metrics-web nyx onionoo onionperf ooni-probe ooni/oonib ooni/reader ooni/spec ooni/web orbot orfoxos/b2g orfoxos/b2g-flash-tool orfoxos/b2g-manifest orfoxos/gaia orfoxos/gonk-misc orfoxos/gecko orfoxos/libevent orfoxos/openssl orfoxos/tor pluggable-transports/pyptlib pluggable-transports/httpsproxy privacy-docs pups support-portal support-tools stegotorus tech-reports testnet thandy tor-browser-bundle-testsuite tor-browser/user-manual tor-animation tor-blog tor-brochure tor-design-2012 tor-glossary tor-mail-bundle tor-manual tor-messenger tor-messenger-build tor-onion-proxy-library tor-ramdisk tor tor-rust-dependencies torbirdy tordnsel tor-fw-helper translation translation-tools trunnel ux/research user/nickm/bridgedb user/nickm/githax user/nickm/obfsproxy user/nickm/trunnel user/nickm/torsocks user/nickm/torguts gitolite-admin user/arma/tor-ideas marco user/nickm/libevent-ideas user/ioerror/filedump secteam sponsor19 dirauth-conf admin/tor-passwords admin/account-keyring; do printf "%s $repo\n" $(git -C $repo.git log --pretty=format:%at -1 2> /dev/null); done  | sort -n

That gave me a nice list of repos ordered by last commit date.

This reverts commit cd6dbee3.