Remove unneeded call to get() when comparing two selected versions.
Remove unneeded call to get() when comparing two selected versions.

Review URL: https://codereview.appspot.com/100460043/

salomon1184/rietveld,dushmis/rietveld,ericmckean/rietveld,salomon1184/rietveld,robfig/rietveld,google-code-export/rietveld,foolonhill/rietveld,supriyantomaftuh/rietveld,aungzanbaw/rietveld,aungzanbaw/rietveld,draem0507/rietveld,fuzan/rietveld,openlabs/cr.openlabs.co.in,google-code-export/rietveld,rietveld-codereview/rietveld,google-code-export/rietveld,salomon1184/rietveld,xtypebee/rietveld,DeanHere/rietveld,sajingeo/rietveld,openlabs/cr.openlabs.co.in,berkus/rietveld,arg0/rietveld,Koulio/rietveld,DeanHere/rietveld,dushmis/rietveld,ericmckean/rietveld,xtypebee/rietveld,gco/rietveld,supriyantomaftuh/rietveld,sajingeo/rietveld,robfig/rietveld,gco/rietveld,foolonhill/rietveld,draem0507/rietveld,arg0/rietveld,DeanHere/rietveld,robfig/rietveld,rietveld-codereview/rietveld,gavioto/rietveld,dushmis/rietveld,sajingeo/rietveld,fuzan/rietveld,v3ss0n/rietveld,v3ss0n/rietveld,supriyantomaftuh/rietveld,andyzsf/rietveld,rietveld-codereview/rietveld,xtypebee/rietveld,gco/rietveld,fuzan/rietveld,v3ss0n/rietveld,draem0507/rietveld,andyzsf/rietveld,berkus/rietveld,openlabs/cr.openlabs.co.in,gavioto/rietveld,berkus/rietveld,gavioto/rietveld,arg0/rietveld,aungzanbaw/rietveld,foolonhill/rietveld,ericmckean/rietveld,andyzsf/rietveld,Koulio/rietveld,Koulio/rietveld,rietveld-codereview/rietveld