Remove use_mrrt config value

Author: sam-muncke

src/auth0_fastapi/auth/auth_client.py

@@ -50,7 +50,6 @@ def __init__(
             transaction_store=transaction_store,
             state_store=state_store,
             pushed_authorization_requests=config.pushed_authorization_requests,
-            use_mrrt=config.use_mrrt,
             authorization_params={
                 "audience": config.audience,
                 "redirect_uri": redirect_uri,

src/auth0_fastapi/config.py

@@ -15,7 +15,6 @@ class Auth0Config(BaseModel):
     audience: Optional[str] = Field(None, description="Target audience for tokens (if applicable)")
     authorization_params: Optional[dict[str, Any]] = Field(None, description="Additional parameters to include in the authorization request")
     pushed_authorization_requests: bool = Field(False, description="Whether to use pushed authorization requests")
-    use_mrrt: bool = Field(False, description="Whether to use Multi-Resource Refresh Tokens (MRRT)")
     # Route-mounting flags with desired defaults
     mount_routes: bool = Field(True, description="Controls /auth/* routes: login, logout, callback, backchannel-logout")
     mount_connect_routes: bool = Field(False, description="Controls /auth/connect routes (account-linking)")