Discard and close body regardless of status code

Signed-off-by: Somtochi Onyekwere <[email protected]>

controllers/imagerepository_controller.go

@@ -280,6 +280,8 @@ func getGCRLoginAuth(ctx context.Context) (authn.AuthConfig, error) {
 	if err != nil {
 		return authConfig, err
 	}
+	defer io.Copy(io.Discard, response.Body)
+	defer response.Body.Close()
 
 	if response.StatusCode != http.StatusOK {
 		return authConfig, fmt.Errorf("unexpected status from metadata service: %s", response.Status)
@@ -291,14 +293,6 @@ func getGCRLoginAuth(ctx context.Context) (authn.AuthConfig, error) {
 		return authConfig, err
 	}
 
-	if _, err := io.Copy(io.Discard, response.Body); err != nil {
-		return authConfig, err
-	}
-
-	if err := response.Body.Close(); err != nil {
-		return authConfig, err
-	}
-
 	authConfig = authn.AuthConfig{
 		Username: "oauth2accesstoken",
 		Password: accessToken.AccessToken,