Fix @VisibleForTesting given the newly deployed enforcement

Generated code is now also covered by @VisibleForTesting, including Dagger @Inject

This CL is a cleanup of auto-generated code by ghm@ from the Error Prone team

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=228748874

java/google/registry/model/domain/secdns/DelegationSignerData.java

@@ -14,7 +14,6 @@
 
 package google.registry.model.domain.secdns;
 
-import com.google.common.annotations.VisibleForTesting;
 import com.googlecode.objectify.annotation.Embed;
 import google.registry.model.ImmutableObject;
 import javax.xml.bind.DatatypeConverter;
@@ -76,7 +75,6 @@ public class DelegationSignerData
     return digest;
   }
 
-  @VisibleForTesting
   public static DelegationSignerData create(
       int keyTag, int algorithm, int digestType, byte[] digest) {
     DelegationSignerData instance = new DelegationSignerData();