[MKL-DNN] Replace manually implemented reorder iohw->oihw with mkl-dnn one

At the time implementing conv_transpose mkl-dnn mkl-dnn did not recognize iohw format hence
custom reorder was implemeted on paddle side. Later on mkl-dnn added iohw format and now we could remove custom reorder.

This is cleanup task. For inference this custom reorder is called only at the beginning. 
