go/pointer: Remove a mention of the deleted ImportFromBinary option.
go/pointer: Remove a mention of the deleted ImportFromBinary option.

Change-Id: I9ca8a5b37afc6ae9603849d233ee6b4976e2b973
Reviewed-on: https://go-review.googlesource.com/9462
Reviewed-by: Alan Donovan <7069e9552f9d110b0a0f326b96f22f63fb99dfc1@google.com>

syreclabs/go-tools,matryer/tools,argandas/tools,cw2018/tools,springning/tools,magiccao/tools,argandas/tools,syreclabs/go-tools,josharian/tools,jdhenke/tools,cmars/tools,golang/tools,argandas/tools,cw2018/tools,magiccao/tools,glasser/golang-tools,matryer/tools,syreclabs/go-tools,nicot/tools,cw2018/tools,nicot/tools,sshetty10/tools,sshetty10/tools,josharian/tools,jdhenke/tools,sshetty10/tools,golang/tools,syreclabs/go-tools,cmars/tools,glasser/golang-tools,nicot/tools,runcom/tools,josharian/tools,cmars/tools,sshetty10/tools,springning/tools,magiccao/tools,runcom/tools,syreclabs/go-tools,cmars/tools,matryer/tools,runcom/tools,glasser/golang-tools,golang/tools,jdhenke/tools,golang/tools,josharian/tools,springning/tools,glasser/golang-tools,runcom/tools,matryer/tools,cw2018/tools,nicot/tools,syreclabs/go-tools,argandas/tools,jdhenke/tools,magiccao/tools,springning/tools,golang/tools