Daggerize TMCH/signed mark util classes

This allows them to support injectable configuration.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=143709052

javatests/google/registry/testing/RegistryConfigRule.java

@@ -19,7 +19,6 @@ import static com.google.common.base.Preconditions.checkNotNull;
 import com.google.common.base.Optional;
 import google.registry.config.RegistryConfig;
 import google.registry.config.RegistryEnvironment;
-import google.registry.config.TestRegistryConfig;
 import org.junit.rules.ExternalResource;
 
 /** JUnit Rule for overriding Nomulus configuration values. */
@@ -42,15 +41,6 @@ public final class RegistryConfigRule extends ExternalResource {
     RegistryEnvironment.overrideConfigurationForTesting(checkNotNull(override));
   }
 
-  /** Override registry configuration to use TMCH production CA. */
-  public void useTmchProdCert() {
-    override(new TestRegistryConfig() {
-      @Override
-      public boolean getTmchCaTestingMode() {
-        return false;
-      }});
-  }
-
   @Override
   protected void before() throws Exception {
     if (override.isPresent()) {