Fix syntax error.

islandora.module

@@ -255,7 +255,6 @@ function islandora_jsonld_alter_normalized_array(EntityInterface $entity, array
         if ($context_config->getReaction($reaction->getPluginId()) && isset($context[CacheableNormalizerInterface::SERIALIZATION_CONTEXT_CACHEABILITY])) {
           $context[CacheableNormalizerInterface::SERIALIZATION_CONTEXT_CACHEABILITY]->addCacheableDependency($context_config); 
         };
-        };
       }
       catch (PluginNotFoundException $e) {
         // Squash :(.