kepctl output: drop io fields from Repo

The last remaining use of them was a testcase that wasn't actually
checking the contents of the ByteBuffer it swapped in. Drop that,
then drop the fields

Author: spiffxp

pkg/repo/repo.go

@@ -19,7 +19,6 @@ package repo
 import (
 	"context"
 	"fmt"
-	"io"
 	"io/ioutil"
 	"net/http"
 	"os"
@@ -64,11 +63,6 @@ type Repo struct {
 	TokenPath string
 	Token     string
 
-	// I/O
-	In  io.Reader
-	Out io.Writer
-	Err io.Writer
-
 	// Document handlers
 	KEPHandler *api.KEPHandler
 	PRRHandler *api.PRRHandler
@@ -162,9 +156,6 @@ func NewRepo(repoPath string, fetcher api.GroupFetcher) (*Repo, error) {
 		ProposalPath:    proposalPath,
 		PRRApprovalPath: prrApprovalPath,
 		ProposalReadme:  proposalReadme,
-		In:              os.Stdin,
-		Out:             os.Stdout,
-		Err:             os.Stderr,
 		KEPHandler:      kepHandler,
 		PRRHandler:      prrHandler,
 	}

pkg/repo/write_test.go

@@ -178,7 +178,6 @@ func newTestClient(t *testing.T, repoPath string) testClient {
 	r, err := repo.NewRepo(repoPath, fetcher)
 	require.Nil(t, err)
 
-	r.Out = b
 	tc.r = r
 
 	// TODO: Parameterize