(tests) Remove debug define from matrix multiply test.
(tests) Remove debug define from matrix multiply test.

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