Remove Account constructor #3767

Job	Run time
Build-And-Test-Web	5m 32s
Build-And-Test-Server (Simple integration tests)	17m 58s
Build-And-Test-Server (Reducer integration tests)	6m 25s
Build-And-Test-Server (DEX integration tests)	13m 55s
Build-And-Test-Server (DEX integration test with proofs)	13m 4s
Build-And-Test-Server (Voting integration tests)	5m 31s
Build-And-Test-Server (Unit tests)	36m 48s
Build-And-Test-Server (Verification Key Regression Check)	11m 20s
Build-And-Test-Server (CommonJS test)	2m 46s
Release-on-NPM	0s
Release-mina-signer-on-NPM	0s
	1h 53m 19s

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