Remove unused function.
Remove unused function.

artnez/gocode,suncycheng/gocode,ghiden/gocode,artnez/gocode,syohex/gocode,mattn/gocode,nsf/gocode,TheBB/gocode,artnez/gocode,beni55/gocode,thousandhigh/gocode,mdempsky/gocode,MerlinDMC/gocode,thousandhigh/gocode,louiseGrandjonc/gocode,louiseGrandjonc/gocode,louiseGrandjonc/gocode,beni55/gocode,lmh008/gocode,lmh008/gocode,kerr-huang/Gocode,fjl/gocode,kerr-huang/Gocode,nsf/gocode,artnez/gocode,ghiden/gocode,mattn/gocode,thousandhigh/gocode,MerlinDMC/gocode,fjl/gocode,mattn/gocode,mattn/gocode,lmh008/gocode,suncycheng/gocode,suncycheng/gocode,mdempsky/gocode,lmh008/gocode,toqueteos/LightTable-Go,kerr-huang/Gocode,syohex/gocode,toqueteos/LightTable-Go,TheBB/gocode,mem/gocode,beni55/gocode,TheBB/gocode,ghiden/gocode,mem/gocode,suncycheng/gocode,mdempsky/gocode,syohex/gocode,ghiden/gocode,mem/gocode,nsf/gocode,fjl/gocode,louiseGrandjonc/gocode,mem/gocode,thousandhigh/gocode,kerr-huang/Gocode,nsf/gocode,TheBB/gocode,MerlinDMC/gocode,beni55/gocode,syohex/gocode,MerlinDMC/gocode,fjl/gocode