Revert "Add cardano ssn (#730)" (#732) #524

Job	Run time
Deploy image (bluebell-playground)	7m 55s
Deploy image (devex-apollo)	40s
Deploy image (dev-wallet)	1m 2s
Deploy image (faucet-service)	57s
Deploy image (eth-spout)	52s
Deploy image (governance-api)	45s
Deploy image (governance-snapshot)	51s
Deploy image (multisig)	54s
Deploy image (neo-savant)	1m 4s
Deploy image (scilla-server)	46s
Deploy image (zillion)	2m 47s
Build image with Makefile (devex)	3m 56s
Build image with Makefile (zilliqa-isolated-server)	1m 31s
	24m 0s

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