Revert "sys_log: replace old debug macros at USB DFU sample"

This reverts commit 573b7420d46342e4ed263681760a616685ff96cc.

Change-Id: Ifc6d079cf49254472ec381a6dd25d642c2d29b88
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2 files changed