Copied code between KSysguard and system-monitor

[Albert Astals Cid]

Hi all,

kdebase/workspace/plasma/dataengines/systemmonitor/sensormanager.cpp
is a copy of
kdebase/workspace/ksysguard/gui/ksgrd/SensorManager.cc

probably the same for all the other sensorfoo in the systemmonitor dataengine.

I guess it's not necessary for me to explain how much this sucks in all 
possible aspects.

Could we please fix it?

Albert