feat: remove DownloadPersistentPiece and DownloadPersistentCachePiece

[gaius-qi]

Description

This pull request removes the DownloadPersistentPiece and DownloadPersistentCachePiece RPC methods and their associated request/response message definitions from the Dfdaemon gRPC API. The changes affect both the protocol buffer definitions and the generated Go code, including the client/server interfaces and mocks. The version number in Cargo.toml is also bumped.

API and Protocol Buffer Cleanup

• Removed the DownloadPersistentPiece and DownloadPersistentCachePiece RPC methods from the DfdaemonUpload service in dfdaemon.proto, along with their request and response message definitions. This streamlines the API by eliminating unused or deprecated functionality. [1] [2] [3] [4]
• Updated the generated Go code in dfdaemon_grpc.pb.go to remove the corresponding client and server interface methods, handler functions, and service descriptor entries for the deleted RPCs. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12]

Test and Mock Updates

• Removed mock methods and expected call definitions for the deleted RPCs from dfdaemon_mock.go, ensuring the mocks are consistent with the updated API. [1] [2] [3]

Version Update

• Bumped the crate version in Cargo.toml from 2.2.10 to 2.2.11 to reflect the API changes.

Related Issue

Motivation and Context

[chlins]

lgtm