got rid of display_alternatives import
got rid of display_alternatives import

deleted importFrom(IRdisplay,display_alternatives)
elaOnMars/IRkernel,Phobia0ptik/IRkernel,ibm-et/IRkernel,JanSchulz/IRkernel,gdtm86/IRkernel,mikecroucher/IRkernel,rgbkrk/IRkernel,chendaniely/IRkernel,ibm-et/IRkernel,ChinaQuants/IRkernel