4.4.0-36.55) is not available, but a newer one is (4.4.0-142.168). We redirected you there.
/usr/bin/ltxfileinfo is in texlive-extra-utils 2015.20160320-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/../share/texlive/texmf-dist/scripts/ltxfileinfo/ltxfileinfo