Revert "Merge pull request kubernetes#2387 from justaugustus/cleanup"

This reverts commit 18903e5, reversing
changes made to 5d6d935.

Author: justaugustus

api/approval.go

@@ -16,19 +16,6 @@ limitations under the License.
 
 package api
 
-import (
-	"bufio"
-	"bytes"
-	"crypto/md5"
-	"fmt"
-	"io"
-	"strings"
-
-	"github.com/go-playground/validator/v10"
-	"github.com/pkg/errors"
-	"gopkg.in/yaml.v3"
-)
-
 type Proposals []*Proposal
 
 func (p *Proposals) AddProposal(proposal *Proposal) {
@@ -69,65 +56,6 @@ type Proposal struct {
 	Contents string `json:"markdown" yaml:"-"`
 }
 
-func (p *Proposal) Validate() error {
-	v := validator.New()
-	if err := v.Struct(p); err != nil {
-		return errors.Wrap(err, "running validation")
-	}
-
-	return nil
-}
-
-type KEPHandler Parser
-
-// TODO(api): Make this a generic parser for all `Document` types
-func (k *KEPHandler) Parse(in io.Reader) (*Proposal, error) {
-	scanner := bufio.NewScanner(in)
-	count := 0
-	metadata := []byte{}
-	var body bytes.Buffer
-	for scanner.Scan() {
-		line := scanner.Text() + "\n"
-		if strings.Contains(line, "---") {
-			count++
-			continue
-		}
-		if count == 1 {
-			metadata = append(metadata, []byte(line)...)
-		} else {
-			body.WriteString(line)
-		}
-	}
-
-	kep := &Proposal{
-		Contents: body.String(),
-	}
-
-	if err := scanner.Err(); err != nil {
-		return kep, errors.Wrap(err, "reading file")
-	}
-
-	// this file is just the KEP metadata
-	if count == 0 {
-		metadata = body.Bytes()
-		kep.Contents = ""
-	}
-
-	if err := yaml.Unmarshal(metadata, &kep); err != nil {
-		k.Errors = append(k.Errors, errors.Wrap(err, "error unmarshalling YAML"))
-		return kep, errors.Wrap(err, "unmarshalling YAML")
-	}
-
-	if valErr := kep.Validate(); valErr != nil {
-		k.Errors = append(k.Errors, errors.Wrap(valErr, "validating KEP"))
-		return kep, errors.Wrap(valErr, "validating KEP")
-	}
-
-	kep.ID = hash(kep.OwningSIG + ":" + kep.Title)
-
-	return kep, nil
-}
-
 type Milestone struct {
 	Alpha  string `json:"alpha" yaml:"alpha"`
 	Beta   string `json:"beta" yaml:"beta"`
@@ -138,7 +66,3 @@ type FeatureGate struct {
 	Name       string   `json:"name" yaml:"name"`
 	Components []string `json:"components" yaml:"components"`
 }
-
-func hash(s string) string {
-	return fmt.Sprintf("%x", md5.Sum([]byte(s)))
-}