Remove "bin/celerity" dependency on database setup
Remove "bin/celerity" dependency on database setup

Summary: Ref PHI2157. Like other low-level tools, "bin/celerity" does not need databases configured in order to execute.

Test Plan: Ran `bin/celerity map` with and without the database available.

Differential Revision: https://secure.phabricator.com/D21730

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