Simplify ArgumentMap

SpigotCore_Main/src/de/steamwar/command/ArgumentMap.java

@@ -35,10 +35,6 @@ public class ArgumentMap {
         return objects.length;
     }
 
-    public Class<?> getType(int index) {
-        return objects[index].getClass();
-    }
-
     public <T> T get(int index) {
         return (T)objects[index];
     }