Remove Contact and ContactHistory Java objects and related code

core/src/main/java/google/registry/flows/domain/DomainFlowUtils.java

@@ -67,14 +67,11 @@
 import google.registry.flows.EppException.RequiredParameterMissingException;
 import google.registry.flows.EppException.StatusProhibitsOperationException;
 import google.registry.flows.EppException.UnimplementedOptionException;
-import google.registry.flows.exceptions.ContactsProhibitedException;
 import google.registry.flows.exceptions.ResourceHasClientUpdateProhibitedException;
 import google.registry.model.EppResource;
 import google.registry.model.billing.BillingBase.Flag;
 import google.registry.model.billing.BillingBase.Reason;
 import google.registry.model.billing.BillingRecurrence;
-import google.registry.model.contact.Contact;
-import google.registry.model.domain.DesignatedContact;
 import google.registry.model.domain.Domain;
 import google.registry.model.domain.DomainCommand.Create;
 import google.registry.model.domain.DomainCommand.CreateOrUpdate;
@@ -421,33 +418,6 @@ static void validateNameserversCountForTld(String tld, InternetDomainName domain
     }
   }
 
-  /** Enforces absence of contact data on creation as part of the Minimum Dataset requirements. */
-  static void enforceContactAbsencesOnCreate(Create create)
-      throws ParameterValuePolicyErrorException {
-    enforceContactAbsences(create.getRegistrant(), create.getContacts());
-  }
-
-  /** Enforces absence of contact data on update as part of the Minimum Dataset requirements. */
-  static void enforceContactAbsencesOnUpdate(Update update)
-      throws ParameterValuePolicyErrorException {
-    Set<DesignatedContact> allDesignatedContacts =
-        Sets.union(update.getInnerAdd().getContacts(), update.getInnerRemove().getContacts());
-    enforceContactAbsences(update.getInnerChange().getRegistrant(), allDesignatedContacts);
-  }
-
-  /** Enforces the absence of contact data as part of the Minimum Dataset requirements. */
-  static void enforceContactAbsences(
-      Optional<VKey<Contact>> registrant, Set<DesignatedContact> contacts)
-      throws ParameterValuePolicyErrorException {
-    if (registrant.isPresent()) {
-      throw new RegistrantProhibitedException();
-    }
-    if (!contacts.isEmpty()) {
-      throw new ContactsProhibitedException();
-    }
-  }
-
-
   static void validateNameserversAllowedOnTld(String tld, Set<String> fullyQualifiedHostNames)
       throws EppException {
     ImmutableSet<String> allowedHostNames = Tld.get(tld).getAllowedFullyQualifiedHostNames();
@@ -971,7 +941,6 @@ static void validateCreateCommandContactsAndNameservers(
       Create command, Tld tld, InternetDomainName domainName) throws EppException {
     verifyNotInPendingDelete(command.getNameservers());
     String tldStr = tld.getTldStr();
-    enforceContactAbsencesOnCreate(command);
     ImmutableSet<String> hostNames = command.getNameserverHostNames();
     validateNameserversCountForTld(tldStr, domainName, hostNames.size());
     validateNameserversAllowedOnTld(tldStr, hostNames);

core/src/main/java/google/registry/flows/domain/DomainUpdateFlow.java

@@ -29,7 +29,6 @@
 import static google.registry.flows.ResourceFlowUtils.verifyResourceOwnership;
 import static google.registry.flows.domain.DomainFlowUtils.checkAllowedAccessToTld;
 import static google.registry.flows.domain.DomainFlowUtils.cloneAndLinkReferences;
-import static google.registry.flows.domain.DomainFlowUtils.enforceContactAbsencesOnUpdate;
 import static google.registry.flows.domain.DomainFlowUtils.updateDsData;
 import static google.registry.flows.domain.DomainFlowUtils.validateDsData;
 import static google.registry.flows.domain.DomainFlowUtils.validateFeesAckedIfPresent;
@@ -249,8 +248,6 @@ private Domain performUpdate(Update command, Domain domain, DateTime now) throws
           ext.getRemove().map(Remove::getDsData).orElse(ImmutableSet.of()));
     }
     Change change = command.getInnerChange();
-    enforceContactAbsencesOnUpdate(command);
-
     Domain.Builder domainBuilder =
         domain
             .asBuilder()

core/src/main/java/google/registry/model/ForeignKeyUtils.java

@@ -29,7 +29,6 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
 import google.registry.config.RegistryConfig;
-import google.registry.model.contact.Contact;
 import google.registry.model.domain.Domain;
 import google.registry.model.host.Host;
 import google.registry.persistence.VKey;
@@ -60,7 +59,6 @@ private ForeignKeyUtils() {}
   private static final ImmutableMap<Class<? extends EppResource>, String>
       RESOURCE_TYPE_TO_FK_PROPERTY =
           ImmutableMap.of(
-              Contact.class, "contactId",
               Domain.class, "domainName",
               Host.class, "hostName");