Fix duplicate '/**' at the beginning of class javadocs

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=134109886

java/google/registry/flows/contact/ContactDeleteFlow.java

@@ -43,7 +43,6 @@ import google.registry.model.reporting.HistoryEntry;
 import javax.inject.Inject;
 import org.joda.time.Duration;
 
-/**
 /**
  * An EPP flow that deletes a contact.
  *