PixelGeoModel+PixelConditionsTools+InDetGeoModelUtils+InDetIdCnv: Remove reference to StoreGate.h.

Remove reference to obsolete header StoreGate.h.

This merge request affects 4 packages:

• InnerDetector/InDetConditions/PixelConditionsTools
• InnerDetector/InDetDetDescr/InDetGeoModelUtils
• InnerDetector/InDetDetDescr/PixelGeoModel
• InnerDetector/InDetDetDescrCnv/InDetIdCnv

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

added InnerDetector master review-pending-level-1 labels

CI Result SUCCESS (hash adf19ab3)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 21762]

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

merged

mentioned in commit 77e19679

added sweep:ignore label