hack: remove code generation related to generated files

With the removal of the protobuf for the controller, there are no longer
any generated files. Remove the makefile targets and the associated
dockerfiles and bake targets.

This wasn't being included in CI because it wasn't part of the
`validate` target.

Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>

Makefile

@@ -8,7 +8,7 @@ endif
 
 export BUILDX_CMD ?= docker buildx
 
-BAKE_TARGETS := binaries binaries-cross lint lint-gopls validate-vendor validate-docs validate-authors validate-generated-files
+BAKE_TARGETS := binaries binaries-cross lint lint-gopls validate-vendor validate-docs validate-authors
 
 .PHONY: all
 all: binaries
@@ -35,7 +35,7 @@ release:
 	./hack/release
 
 .PHONY: validate-all
-validate-all: lint test validate-vendor validate-docs validate-generated-files
+validate-all: lint test validate-vendor validate-docs
 
 .PHONY: test
 test:
@@ -68,7 +68,3 @@ authors:
 .PHONY: mod-outdated
 mod-outdated:
 	$(BUILDX_CMD) bake mod-outdated
-
-.PHONY: generated-files
-generated-files:
-	$(BUILDX_CMD) bake update-generated-files

docker-bake.hcl

@@ -98,13 +98,6 @@ target "validate-authors" {
   output = ["type=cacheonly"]
 }
 
-target "validate-generated-files" {
-  inherits = ["_common"]
-  dockerfile = "./hack/dockerfiles/generated-files.Dockerfile"
-  target = "validate"
-  output = ["type=cacheonly"]
-}
-
 target "update-vendor" {
   inherits = ["_common"]
   dockerfile = "./hack/dockerfiles/vendor.Dockerfile"
@@ -130,13 +123,6 @@ target "update-authors" {
   output = ["."]
 }
 
-target "update-generated-files" {
-  inherits = ["_common"]
-  dockerfile = "./hack/dockerfiles/generated-files.Dockerfile"
-  target = "update"
-  output = ["."]
-}
-
 target "mod-outdated" {
   inherits = ["_common"]
   dockerfile = "./hack/dockerfiles/vendor.Dockerfile"

hack/dockerfiles/generated-files.Dockerfile

@@ -1,98 +0,0 @@
-# syntax=docker/dockerfile:1
-
-# Forked from https://github.com/moby/buildkit/blob/e1b3b6c4abf7684f13e6391e5f7bc9210752687a/hack/dockerfiles/generated-files.Dockerfile
-# Copyright The BuildKit Authors.
-# Copyright The Buildx Authors.
-# Licensed under the Apache License, Version 2.0
-
-ARG GO_VERSION=1.24
-ARG PROTOC_VERSION=3.11.4
-ARG PROTOC_GOOGLEAPIS_VERSION=2af421884dd468d565137215c946ebe4e245ae26
-
-# protoc is dynamically linked to glibc so can't use alpine base
-FROM golang:${GO_VERSION}-bookworm AS base
-RUN apt-get update && apt-get --no-install-recommends install -y git unzip
-
-FROM base AS protoc
-ARG PROTOC_VERSION
-ARG TARGETOS
-ARG TARGETARCH
-RUN <<EOT
-  set -e
-  arch=$(echo $TARGETARCH | sed -e s/amd64/x86_64/ -e s/arm64/aarch_64/)
-  wget -q https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/protoc-${PROTOC_VERSION}-${TARGETOS}-${arch}.zip
-  unzip protoc-${PROTOC_VERSION}-${TARGETOS}-${arch}.zip -d /opt/protoc
-EOT
-
-FROM base AS googleapis
-ARG PROTOC_GOOGLEAPIS_VERSION
-RUN <<EOT
-  set -e
-  wget -q https://github.com/googleapis/googleapis/archive/${PROTOC_GOOGLEAPIS_VERSION}.zip -O googleapis.zip
-  unzip googleapis.zip '*.proto' -d /opt
-  mkdir -p /opt/googleapis
-  mv /opt/googleapis-${PROTOC_GOOGLEAPIS_VERSION} /opt/googleapis/include
-EOT
-
-FROM base AS gobuild-base
-WORKDIR /app
-
-FROM gobuild-base AS vtprotobuf
-RUN --mount=type=bind,source=go.mod,target=/app/go.mod \
-    --mount=type=bind,source=go.sum,target=/app/go.sum \
-    --mount=type=cache,target=/root/.cache \
-    --mount=type=cache,target=/go/pkg/mod <<EOT
-  set -e
-  mkdir -p /opt/vtprotobuf
-  go mod download github.com/planetscale/vtprotobuf
-  cp -r $(go list -m -f='{{.Dir}}' github.com/planetscale/vtprotobuf)/include /opt/vtprotobuf
-EOT
-
-FROM gobuild-base AS vendored
-RUN --mount=type=bind,source=vendor,target=/app <<EOT
-  set -e
-  mkdir -p /opt/vendored/include
-  find . -name '*.proto' | tar -cf - --files-from - | tar -C /opt/vendored/include -xf -
-EOT
-
-FROM gobuild-base AS tools
-RUN --mount=type=bind,source=go.mod,target=/app/go.mod,ro \
-    --mount=type=bind,source=go.sum,target=/app/go.sum,ro \
-    --mount=type=cache,target=/root/.cache \
-    --mount=type=cache,target=/go/pkg/mod \
-  go install \
-    github.com/planetscale/vtprotobuf/cmd/protoc-gen-go-vtproto \
-    google.golang.org/protobuf/cmd/protoc-gen-go \
-    google.golang.org/grpc/cmd/protoc-gen-go-grpc
-COPY --link --from=protoc /opt/protoc /usr/local
-COPY --link --from=googleapis /opt/googleapis /usr/local
-COPY --link --from=vtprotobuf /opt/vtprotobuf /usr/local
-COPY --link --from=vendored /opt/vendored /usr/local
-
-FROM tools AS generated
-RUN --mount=type=bind,target=github.com/docker/buildx,ro <<EOT
-  set -ex
-  mkdir /out
-  find github.com/docker/buildx -name '*.proto' -o -name vendor -prune -false | xargs \
-    protoc --go_out=/out --go-grpc_out=require_unimplemented_servers=false:/out \
-           --go-vtproto_out=features=marshal+unmarshal+size+equal+pool+clone:/out
-EOT
-
-FROM scratch AS update
-COPY --from=generated /out/github.com/docker/buildx /
-
-FROM gobuild-base AS validate
-RUN --mount=type=bind,target=.,rw \
-    --mount=type=bind,from=update,target=/generated-files <<EOT
-  set -e
-  git add -A
-  if [ "$(ls -A /generated-files)" ]; then
-    cp -rf /generated-files/* .
-  fi
-  diff=$(git status --porcelain -- ':!vendor' '**/*.pb.go')
-  if [ -n "$diff" ]; then
-    echo >&2 'ERROR: The result of "go generate" differs. Please update with "make generated-files"'
-    echo "$diff"
-    exit 1
-  fi
-EOT