internal/registry: ParseRepositoryInfo: remove unused error return

Removed the error return from the `ParseRepositoryInfo` function.
There are no validation steps inside `ParseRepositoryInfo` which
could cause an error, so we always returned a nil error.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/image/push.go

@@ -105,7 +105,7 @@ To push the complete multi-platform image, remove the --platform flag.
 	}
 
 	// Resolve the Repository name from fqn to RepositoryInfo
-	repoInfo, _ := registry.ParseRepositoryInfo(ref)
+	repoInfo := registry.ParseRepositoryInfo(ref)
 
 	// Resolve the Auth config relevant for this server
 	authConfig := command.ResolveAuthConfig(dockerCli.ConfigFile(), repoInfo.Index)

cli/command/plugin/install.go

@@ -66,8 +66,7 @@ func buildPullConfig(ctx context.Context, dockerCli command.Cli, opts pluginOpti
 		return client.PluginInstallOptions{}, err
 	}
 
-	repoInfo, _ := registry.ParseRepositoryInfo(ref)
-
+	repoInfo := registry.ParseRepositoryInfo(ref)
 	remote := ref.String()
 
 	_, isCanonical := ref.(reference.Canonical)

cli/command/plugin/push.go

@@ -49,7 +49,7 @@ func runPush(ctx context.Context, dockerCli command.Cli, opts pushOptions) error
 
 	named = reference.TagNameOnly(named)
 
-	repoInfo, _ := registry.ParseRepositoryInfo(named)
+	repoInfo := registry.ParseRepositoryInfo(named)
 	authConfig := command.ResolveAuthConfig(dockerCli.ConfigFile(), repoInfo.Index)
 	encodedAuth, err := registrytypes.EncodeAuthConfig(authConfig)
 	if err != nil {

cli/command/service/trust.go

@@ -51,7 +51,7 @@ func resolveServiceImageDigestContentTrust(dockerCli command.Cli, service *swarm
 }
 
 func trustedResolveDigest(cli command.Cli, ref reference.NamedTagged) (reference.Canonical, error) {
-	repoInfo, _ := registry.ParseRepositoryInfo(ref)
+	repoInfo := registry.ParseRepositoryInfo(ref)
 	authConfig := command.ResolveAuthConfig(cli.ConfigFile(), repoInfo.Index)
 
 	notaryRepo, err := trust.GetNotaryRepository(cli.In(), cli.Out(), command.UserAgent(), repoInfo, &authConfig, "pull")