インストールはしたものの私には不要だったので、以下コマンドで削除しました。下4つ以外は一括削除できます。
rm /usr/local/include/tcutil.h
rm /usr/local/include/tchdb.h
rm /usr/local/include/tcbdb.h
rm /usr/local/include/tcfdb.h
rm /usr/local/include/tctdb.h
rm /usr/local/include/tcadb.h
rm /usr/local/lib/libtokyocabinet.a
rm /usr/local/lib/libtokyocabinet.so.x.y.z
rm /usr/local/lib/libtokyocabinet.so.x
rm /usr/local/lib/libtokyocabinet.so
rm /usr/local/lib/pkgconfig/tokyocabinet.pc
rm /usr/local/bin/tcutest
rm /usr/local/bin/tcumttest
rm /usr/local/bin/tcucodec
rm /usr/local/bin/tchtest
rm /usr/local/bin/tchmttest
rm /usr/local/bin/tchmgr
rm /usr/local/bin/tcbmgr
rm /usr/local/bin/tcbtest
rm /usr/local/bin/tcbmttest
rm /usr/local/bin/tcftest
rm /usr/local/bin/tcfmttest
rm /usr/local/bin/tcfmgr
rm /usr/local/bin/tcttest
rm /usr/local/bin/tctmttest
rm /usr/local/bin/tctmgr
rm /usr/local/bin/tcatest
rm /usr/local/bin/tcamttest
rm /usr/local/bin/tcamgr
sudo rm /usr/local/libexec/tcawmgr.cgi
sudo rm -r /usr/local/share/tokyocabinet/
sudo rm -r /usr/local/man/man1/
sudo rm -r /usr/local/man/man3/