[cleanup] Remove useless ins_info array.
[cleanup] Remove useless ins_info array.

fhijaz/Graphite,nkawahara/Graphite,mit-carbon/Graphite-Cycle-Level,fhijaz/Graphite,fhijaz/Graphite,8l/Graphite,mit-carbon/Graphite,victorisildur/Graphite,mit-carbon/Graphite-Cycle-Level,8l/Graphite,nkawahara/Graphite,nkawahara/Graphite,victorisildur/Graphite,mit-carbon/Graphite-Cycle-Level,mit-carbon/Graphite,mit-carbon/Graphite,victorisildur/Graphite,fhijaz/Graphite,nkawahara/Graphite,victorisildur/Graphite,mit-carbon/Graphite-Cycle-Level,mit-carbon/Graphite,8l/Graphite,8l/Graphite