Clean up unused doLongPixels property in TotPixelClusterSplitter

Self-explanatory

This merge request affects 1 package:

• InnerDetector/InDetRecTools/SiClusterizationTool

This merge request affects 2 files:

• InnerDetector/InDetRecTools/SiClusterizationTool/SiClusterizationTool/TotPixelClusterSplitter.h
• InnerDetector/InDetRecTools/SiClusterizationTool/src/TotPixelClusterSplitter.cxx

Adding @goetz ,@stsuno ,@lshan ,@battagl ,@sroe as watchers

added 23.0 InnerDetector review-pending-level-1 labels

CI Result SUCCESS (hash 918142fd)

	Athena
externals
cmake
make
tests

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For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 72728]

lgtm

added review-approved label and removed review-pending-level-1 label

mentioned in commit 118d8950

merged

mentioned in merge request !63700 (merged)