Adapt to EIP-1193 provider changes

[mcmire]

After SafeEventEmitterProvider is updated to support EIP-1193, we should adapt to the changes:

• Calling sendAsync will be deprecated; we should use request instead.
  • Here is where we are doing this in the core repo:
  • FakeProvider
  • NetworkController tests
  • Additionally, there are places where we expect the provider that NetworkController returns to have a sendAsync method, and similarly, we should change this to request and update the method signature appropriately:
  • SelectedNetworkController tests
  • createAutoManagedNetworkClient tests
• Note that there are places in core where we are calling sendAsync on eth-query. We don't need to worry about those in this ticket; they are being addressed in a different ticket.

[MakiBM]

Any chance to have that coming?

[mcmire]

@MakiBM We are working on this now :)