Scope down lastTransferTime to only ContactResource, DomainResource

and HostResource.

DomainApplication is not transferable and has no need for this
field. HostResource needs it because it can be transferred with
a domain.

This is all in service of removing the ofy().load() inside of
host's cloneProjectedAtTime.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=139346925

javatests/google/registry/testing/AbstractEppResourceSubject.java

@@ -150,20 +150,6 @@ abstract class AbstractEppResourceSubject
         "has deletionTime");
   }
 
-  public And<S> hasLastTransferTime(DateTime lastTransferTime) {
-    return hasValue(
-        lastTransferTime,
-        actual().getLastTransferTime(),
-        "has lastTransferTime");
-  }
-
-  public And<S> hasLastTransferTimeNotEqualTo(DateTime lastTransferTime) {
-    return doesNotHaveValue(
-        lastTransferTime,
-        actual().getLastTransferTime(),
-        "lastTransferTime");
-  }
-
   public And<S> hasLastEppUpdateTime(DateTime lastUpdateTime) {
     return hasValue(
         lastUpdateTime,