doc/go1.11: remove draft status
doc/go1.11: remove draft status

Change-Id: I3f99083b7d8ab06482c2c22eafda8b0141a872bd
Reviewed-on: https://go-review.googlesource.com/131076
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

josharian/go,cloudflare/go,akutz/go,CAFxX/go,josharian/go,nawawi/go,cloudflare/go,golang/go,akutz/go,josharian/go,CAFxX/go,nawawi/go,cloudflare/go,josharian/go,golang/go,nawawi/go,CAFxX/go,akutz/go,cloudflare/go,nawawi/go,cloudflare/go,josharian/go,akutz/go,josharian/go,akutz/go,CAFxX/go,golang/go,josharian/go,nawawi/go,nawawi/go,akutz/go,akutz/go,CAFxX/go,golang/go,golang/go,nawawi/go,golang/go,cloudflare/go,akutz/go,golang/go,josharian/go,golang/go,cloudflare/go,nawawi/go,CAFxX/go,cloudflare/go,CAFxX/go,CAFxX/go