Remove unused deps #659

Job	Run time
build	5m 23s
clippy	2m 6s
fmt	16s
tests (coverage-point-calculator)	1m 28s
tests (coverage-map)	1m 33s
tests (ingest)	1m 53s
tests (reward-scheduler)	1m 9s
tests (task-manager)	1m 10s
tests-postgres (boost-manager)	2m 35s
tests-postgres (file-store)	2m 19s
tests-postgres (iot-config)	2m 37s
tests-postgres (iot-packet-verifier)	4m 3s
tests-postgres (iot-verifier)	3m 17s
tests-postgres (mobile-config)	2m 40s
tests-postgres (mobile-packet-verifier)	2m 28s
tests-postgres (mobile-verifier)	2m 51s
build-release	0s
	37m 48s

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