Changes to support complete use of RICH PMTs/panels in the reco

Supports changes in LHCb!3454 (merged)

Detector/Rich/include/Detector/Rich/DeRichMapmt.h

@@ -47,7 +47,7 @@ namespace LHCb::Detector::detail {
     auto moduleCopyNum() const noexcept { return this->access()->m_MapmtModuleCopyNum; }
     auto isHType() const noexcept { return this->access()->m_isHType; }
     auto QE() const noexcept { return scalePhotonEnergies( this->access()->m_PmtQE ); }
-    auto effPixelArea() const noexcept { return toLHCbAreaUnits( this->access()->m_effPixelArea ); }
+    auto effPixelArea() const noexcept { return this->access()->m_effPixelArea; }
     auto numPixels() const noexcept { return this->access()->m_numPixels; }
   };