Revert "Skip QED events in TPC QA"

This reverts commit dce7e0e.

Author: davidrohr

GPU/GPUTracking/qa/GPUQA.cxx

@@ -686,9 +686,6 @@ void GPUQA::InitO2MCData(GPUTrackingInOutPointers* updateIOPtr)
 
     mMCInfosCol.resize(nSimTotalEvents);
     for (int32_t iSim = 0; iSim < mcReader.getNSources(); iSim++) {
-      if (iSim == o2::steer::QEDSOURCEID) {
-        continue;
-      }
       for (int32_t i = 0; i < mcReader.getNEvents(iSim); i++) {
         auto ir = evrec[i];
         auto ir0 = o2::raw::HBFUtils::Instance().getFirstIRofTF(ir);