sys_log: removed unused macro at pci_config.c

Debug macro definition at this file was repetitive and has been
superseded by new system logging API. Furthermore it was not being
used on this .c file.
JIRA: ZEP-311

Change-Id: Id5828d1144fa03cc24f100ae94ecc596502c1131
Signed-off-by: Genaro Saucedo Tejada <genaro.saucedo.tejada@intel.com>
1 file changed