Rollback the previous test removal or privacy package on devnet.
This reverts commit 4f79e535b37dc85144e2d38c2f2570b0ce4305b2.
This reverts commit 5a2722c268ec4f03f3117b1af2dee2411af4b13a.
* update secp256k1 library from go-eth code
* cast deprecated functions to use new BitCurve type
* add IsOnCurve checks and tests
* add test outcome check
* fix test
* update secp256k1 library from go-eth code
* cast deprecated functions to use new BitCurve type
* add IsOnCurve checks and tests
* add test outcome check