godoc: remove TODO (bug257.go can now be indexed)
godoc: remove TODO (bug257.go can now be indexed)

Pending CL 3752044.

R=r, r2
CC=golang-dev
http://codereview.appspot.com/3949042

apparentlymart/golang,ssrl/go,dsriram/golang,ssrl/go,gnanderson/go,apparentlymart/golang,gnanderson/go,gnanderson/go,dsriram/golang,tv42/old-go,apparentlymart/golang,pombredanne/go-deleteme,tv42/old-go,ssrl/go,dsriram/golang,tv42/old-go,ssrl/go,ssrl/go,ssrl/go,dsriram/golang,tv42/old-go,pombredanne/go-deleteme,gnanderson/go,apparentlymart/golang,gnanderson/go,dsriram/golang,pombredanne/go-deleteme,apparentlymart/golang,pombredanne/go-deleteme,apparentlymart/golang,tv42/old-go,apparentlymart/golang,gnanderson/go,ssrl/go,dsriram/golang,pombredanne/go-deleteme,tv42/old-go,pombredanne/go-deleteme,gnanderson/go,dsriram/golang,tv42/old-go,pombredanne/go-deleteme