Misc fix

src/Umbraco.Examine/IIndexPopulator.cs

@@ -1,22 +1,20 @@
-using System.Collections.Generic;
-using Examine;
+using Examine;
 
 namespace Umbraco.Examine
 {
     public interface IIndexPopulator
     {
         /// <summary>
-        /// If this index is registered with this populatr
+        /// If this index is registered with this populator
         /// </summary>
         /// <param name="index"></param>
         /// <returns></returns>
         bool IsRegistered(IIndex index);
 
         /// <summary>
-        /// Populate indexers 
+        /// Populate indexers
         /// </summary>
         /// <param name="indexes"></param>
         void Populate(params IIndex[] indexes);
     }
-    
 }