message: Deprecate old function
diff: @@ -557,11 +557,6 @@ pub extern fn vcx_proof_get_request_msg(command_handle: CommandHandle,
  }
  -/// Todo: This api should remove the connection_handle!! It is not being used within the code. I assume
  -/// the only reason it still has it as an input was to not break it for existing users. vcx_get_proof_msg
  -/// is the updated api that we should use.
  -/// Get Proof message
  -///
  /// #Params
  /// command_handle: command handle to map callback to user context.
  ///
  @@ -573,10 +568,14 @@ pub extern fn vcx_proof_get_request_msg(command_handle: CommandHandle,
  ///
  /// #Returns
  /// Error code as a u32
  +#[deprecated(
  + since = "1.15.0",
  + note = "Use vcx_get_proof_msg() instead. This api is similar, but requires an extra parameter (connection_handle) which is unnecessary and unused in the internals."
  +)]
  #[no_mangle]
  pub extern fn vcx_get_proof(command_handle: CommandHandle,
  proof_handle: u32,
  - _connection_handle: u32,
  + _unused_connection_handle: u32,
  cb: Option<extern fn(xcommand_handle: CommandHandle, err: u32, proof_state:u32, response_data: *const c_char)>) -> u32 {
  info!("vcx_get_proof >>>");
  