Removed CommMonitor tracing between CPU and L1 D$
Removed CommMonitor tracing between CPU and L1 D$

nilmini20s/gem5-2016-08-13,nilmini20s/gem5-2016-08-13,nilmini20s/gem5-2016-08-13,nilmini20s/gem5-2016-08-13,nilmini20s/gem5-2016-08-13,nilmini20s/gem5-2016-08-13,nilmini20s/gem5-2016-08-13