cmd/coordinator: delete annoying log message
cmd/coordinator: delete annoying log message

Change-Id: Ib5b2766636f7fc0a69be23190f05f60bf88f085f
Reviewed-on: https://go-review.googlesource.com/10491
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

evandbrown/build,golang/build,proppy/build,golang/build,golang/build,evandbrown/build,proppy/build,proppy/build,golang/build,evandbrown/build,proppy/build