Remove Provider from mpc-core-kit

[ieow]

mpc core kit will be injected in to Ethereum Provider instead of being setup in mpc core kit

[yashovardhan]

While doing this, is it possible to extend the same secp256k1 based signatures for a cosmos and bitcoin provider as well? Is it possible for us as DevRel team to make multiple providers like these on community/ customer request?

[ieow]

As long as other provider accept interface with function sign and getPublicKey, we could adapt and inject in to the provider

[himanshuchawla009]

merged in v3