Removed old code in camera example.
Removed old code in camera example.

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