MCTruthClassifier: Fix cppcheck warning.

Redundant null pointer test.

This merge request affects 1 package:

• PhysicsAnalysis/MCTruthClassifier

This merge request affects 1 file:

• PhysicsAnalysis/MCTruthClassifier/Root/MCTruthClassifierGen.cxx

Adding @zmarshal as watcher

added Analysis analysis-review-required main review-pending-level-1 labels

CI Result SUCCESS (hash c8bb4a76)

	Athena	AthGeneration	AnalysisBase	AthAnalysis
externals
cmake
make
tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-EL9 3071]

Looks good, approving - L2

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

This looks good to me as well - AR

removed analysis-review-required label

added analysis-review-approved label

merged

mentioned in commit a6d30dc3