[WebAuthn] Remove unused callback aliases

Some callback aliases were missed when I was taking out the BLE
authenticator code earlier this year. This removes them.

Change-Id: Ic69352e4fde6892821e9076f111d030299e9451f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2575156Reviewed-by: Nina Satragno <nsatragno@chromium.org>
Commit-Queue: Ken Buchanan <kenrb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#833823}

chrome/browser/webauthn/authenticator_request_dialog_model.h

@@ -38,8 +38,6 @@ class AuthenticatorGetAssertionResponse;
 class AuthenticatorRequestDialogModel {
  public:
   using RequestCallback = device::FidoRequestHandlerBase::RequestCallback;
-  using BlePairingCallback = device::FidoRequestHandlerBase::BlePairingCallback;
-  using BleDevicePairedCallback = base::RepeatingCallback<void(std::string)>;
   using TransportAvailabilityInfo =
       device::FidoRequestHandlerBase::TransportAvailabilityInfo;
 

device/fido/fido_request_handler_base.h

@@ -41,11 +41,6 @@ class COMPONENT_EXPORT(DEVICE_FIDO) FidoRequestHandlerBase
     : public FidoDiscoveryBase::Observer {
  public:
   using RequestCallback = base::RepeatingCallback<void(const std::string&)>;
-  using BlePairingCallback =
-      base::RepeatingCallback<void(std::string authenticator_id,
-                                   base::Optional<std::string> pin_code,
-                                   base::OnceClosure success_callback,
-                                   base::OnceClosure error_callback)>;
 
   enum class RequestType { kMakeCredential, kGetAssertion };