Refactoring the loadbalancing view classes

In several view classes, there's overloaded functions that do nothing but
calling the overloaded function and returning the results. Removed theses
functions.

Change-Id: I595b978fb7e9da867bd7a4d66dd07e9eaec9e7b4
Closes-Bug: #1265619
Merge "Refactoring the loadbalancing view classes"