KEYCLOAK-11725 Removed VaultRealmModel from tests

services/src/main/java/org/keycloak/vault/FilesPlainTextVaultProviderFactory.java

@@ -30,7 +30,7 @@ public class FilesPlainTextVaultProviderFactory implements VaultProviderFactory
             logger.debug("Can not create a vault since it's disabled or not initialized correctly");
             return null;
         }
-        return new FilesPlainTextVaultProvider(vaultPath, session.getContext().getRealm().getName());
+        return new FilesPlainTextVaultProvider(vaultPath, getRealmName(session));
     }
 
     @Override
@@ -60,4 +60,8 @@ public class FilesPlainTextVaultProviderFactory implements VaultProviderFactory
     public String getId() {
         return PROVIDER_ID;
     }
+
+    protected String getRealmName(KeycloakSession session) {
+        return session.getContext().getRealm().getName();
+    }
 }