remove testing call to canvas.update
remove testing call to canvas.update

RebeccaWPerry/vispy,jay3sh/vispy,QuLogic/vispy,jdreaver/vispy,ghisvail/vispy,srinathv/vispy,sh4wn/vispy,sh4wn/vispy,drufat/vispy,julienr/vispy,dchilds7/Deysha-Star-Formation,dchilds7/Deysha-Star-Formation,jay3sh/vispy,michaelaye/vispy,QuLogic/vispy,QuLogic/vispy,Eric89GXL/vispy,ghisvail/vispy,julienr/vispy,bollu/vispy,kkuunnddaannkk/vispy,inclement/vispy,julienr/vispy,michaelaye/vispy,inclement/vispy,ghisvail/vispy,bollu/vispy,kkuunnddaannkk/vispy,jdreaver/vispy,bollu/vispy,kkuunnddaannkk/vispy,sh4wn/vispy,Eric89GXL/vispy,jdreaver/vispy,drufat/vispy,Eric89GXL/vispy,jay3sh/vispy,dchilds7/Deysha-Star-Formation,RebeccaWPerry/vispy,drufat/vispy,RebeccaWPerry/vispy,srinathv/vispy,sbtlaarzc/vispy,inclement/vispy,sbtlaarzc/vispy,srinathv/vispy,sbtlaarzc/vispy,michaelaye/vispy