Remove master and writenode

.jenkins/modules/Publish/Publish.groovy

.jenkins/modules/Regression/PythonRegression.groovy

Makefile

build/docker/deploy/docker-compose.yml

build/docker/deploy/master/DockerFile

build/docker/deploy/writenode/DockerFile

cmd/master/main.go

cmd/singlenode/main.go

cmd/writenode/writenode.go

configs/advanced/write_node.yaml

internal/indexnode/indexnode_test.go

internal/master/README.md

internal/master/client.go

internal/master/collection_task.go

internal/master/config_test.yaml

internal/master/field_id.go

internal/master/flush_scheduler.go

internal/master/global_allocator.go

internal/master/global_allocator_test.go

internal/master/grpc_service.go