Adapt bindings to updated global-refdb API

Change-Id: I217b4e966a9a460c62497558b112fc54d5a16aab

src/main/java/com/googlesource/gerrit/plugins/multisite/validation/ValidationModule.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/ValidationModule.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/ValidationModule.java
index 963c7a8..1971c35 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/ValidationModule.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/ValidationModule.java
@@ -26,9 +26,6 @@
 import com.gerritforge.gerrit.globalrefdb.validation.SharedRefDbRefUpdate;
 import com.gerritforge.gerrit.globalrefdb.validation.SharedRefDbRepository;
 import com.gerritforge.gerrit.globalrefdb.validation.SharedRefLogger;
-import com.gerritforge.gerrit.globalrefdb.validation.dfsrefdb.LegacyCustomSharedRefEnforcementByProject;
-import com.gerritforge.gerrit.globalrefdb.validation.dfsrefdb.LegacyDefaultSharedRefEnforcement;
-import com.gerritforge.gerrit.globalrefdb.validation.dfsrefdb.LegacySharedRefEnforcement;
 import com.google.common.collect.ImmutableSet;
 import com.google.gerrit.extensions.config.FactoryModule;
 import com.google.gerrit.extensions.registration.DynamicSet;
@@ -69,16 +66,6 @@
                 ProjectVersionRefUpdate.MULTI_SITE_VERSIONING_VALUE_REF));
     install(new RepositoryManagerModule(repoConfig));
 
-    if (cfg.getSharedRefDbConfiguration().getSharedRefDb().getEnforcementRules().isEmpty()) {
-      bind(LegacySharedRefEnforcement.class)
-          .to(LegacyDefaultSharedRefEnforcement.class)
-          .in(Scopes.SINGLETON);
-    } else {
-      bind(LegacySharedRefEnforcement.class)
-          .to(LegacyCustomSharedRefEnforcementByProject.class)
-          .in(Scopes.SINGLETON);
-    }
-
     DynamicSet.bind(binder(), ExceptionHook.class).to(SharedRefDbExceptionHook.class);
   }
 }