🎨 Cleanup code

src/main/java/org/b3log/solo/event/plugin/PluginRefresher.java

@@ -15,7 +15,6 @@
  */
 package org.b3log.solo.event.plugin;
 
-
 import org.b3log.latke.event.AbstractEventListener;
 import org.b3log.latke.event.Event;
 import org.b3log.latke.event.EventException;
@@ -32,7 +31,6 @@ import org.b3log.solo.service.PluginMgmtService;
 
 import java.util.List;
 
-
 /**
  * This listener is responsible for refreshing plugin after every loaded.
  *
@@ -58,10 +56,8 @@ public final class PluginRefresher extends AbstractEventListener<List<AbstractPl
         final PluginRepository pluginRepository = beanManager.getReference(PluginRepositoryImpl.class);
 
         final Transaction transaction = pluginRepository.beginTransaction();
-        
         try {
             final PluginMgmtService pluginMgmtService = beanManager.getReference(PluginMgmtService.class);
-            
             pluginMgmtService.refresh(plugins);
             transaction.commit();
         } catch (final Exception e) {