remove more unused tools

Author: BenTheElder

hack/tools/tools.go

@@ -27,23 +27,10 @@ import (
 	// linter(s)
 	_ "github.com/golangci/golangci-lint/cmd/golangci-lint"
 
-	// kubernetes code generators
-	_ "github.com/go-bindata/go-bindata/v3"
-	_ "k8s.io/code-generator/cmd/client-gen"
-	_ "k8s.io/code-generator/cmd/deepcopy-gen"
-	_ "k8s.io/code-generator/cmd/informer-gen"
-	_ "k8s.io/code-generator/cmd/lister-gen"
-	_ "sigs.k8s.io/controller-tools/cmd/controller-gen"
-
-	// proto generator
-	_ "github.com/golang/protobuf/protoc-gen-go"
-
 	// test runner
 	_ "gotest.tools/gotestsum"
 
-	// bazel-related tools
-	_ "github.com/bazelbuild/buildtools/buildozer"
-
+	// spellcheck
 	_ "github.com/client9/misspell/cmd/misspell"
 
 	// image builder