Remove an unused declaration, obsoleted in 2b03c8f.
Remove an unused declaration, obsoleted in 2b03c8f.

malcolmr/nodatime,jskeet/nodatime,BenJenkinson/nodatime,nodatime/nodatime,malcolmr/nodatime,malcolmr/nodatime,jskeet/nodatime,malcolmr/nodatime,BenJenkinson/nodatime,nodatime/nodatime