Remove testing babel polyfill as we now require it in the code.
Remove testing babel polyfill as we now require it in the code.

benjaoming/kolibri,DXCanas/kolibri,DXCanas/kolibri,indirectlylit/kolibri,MingDai/kolibri,jtamiace/kolibri,benjaoming/kolibri,jayoshih/kolibri,MingDai/kolibri,aronasorman/kolibri,ralphiee22/kolibri,mrpau/kolibri,ralphiee22/kolibri,benjaoming/kolibri,jamalex/kolibri,aronasorman/kolibri,MingDai/kolibri,jamalex/kolibri,lyw07/kolibri,rtibbles/kolibri,indirectlylit/kolibri,jonboiser/kolibri,learningequality/kolibri,aronasorman/kolibri,DXCanas/kolibri,learningequality/kolibri,whitzhu/kolibri,66eli77/kolibri,mrpau/kolibri,lyw07/kolibri,rtibbles/kolibri,rtibbles/kolibri,indirectlylit/kolibri,whitzhu/kolibri,learningequality/kolibri,jonboiser/kolibri,lyw07/kolibri,mrpau/kolibri,jtamiace/kolibri,66eli77/kolibri,christianmemije/kolibri,benjaoming/kolibri,jonboiser/kolibri,jtamiace/kolibri,jayoshih/kolibri,christianmemije/kolibri,jtamiace/kolibri,ralphiee22/kolibri,66eli77/kolibri,lyw07/kolibri,jayoshih/kolibri,66eli77/kolibri,jonboiser/kolibri,learningequality/kolibri,ralphiee22/kolibri,jayoshih/kolibri,whitzhu/kolibri,DXCanas/kolibri,indirectlylit/kolibri,aronasorman/kolibri,christianmemije/kolibri,christianmemije/kolibri,rtibbles/kolibri,jamalex/kolibri,MingDai/kolibri,jamalex/kolibri,whitzhu/kolibri,mrpau/kolibri