Further clean up after merging CMSSW_11_2_0_pre7 (#556)

Minor bug fixes:
  - fix a typo in EventFilter/EcalRawToDigi/plugins/BuildFile.xml .

Clean up:
  - remove obsolete ArrayShadow class;
  - remove obsolete profiling functions.

EventFilter/EcalRawToDigi/plugins/BuildFile.xml

@@ -9,7 +9,6 @@
 <use name="FWCore/Utilities"/>
 <use name="HeterogeneousCore/CUDACore"/>
 <use name="HeterogeneousCore/CUDAUtilities"/>
-<library file="*.cc" name="EventFilterEcalRawToDigiPlugins">
 <library file="*.cc *.cu" name="EventFilterEcalRawToDigiPlugins">
   <flags EDM_PLUGIN="1"/>
 </library>