Removes unnecessary call in class constructor
Merge pull request #1929 from fonkadelic/patch-1

Removes unnecessary call in class constructor
[Issue #1920] Comparing request against current image view operation request
Merge branch 'master' of github.com:AFNetworking/AFNetworking
Merge commit '34fe6c028e2a3b95b1c81894a680776374ad740c'