Remove removed upgrade commands

Delete commands that are no longer in Terraform and have been
removed for a full release cycle.

command/012_config_upgrade.go

@@ -1,32 +0,0 @@
-package command
-
-import (
-	"strings"
-)
-
-type ZeroTwelveUpgradeCommand struct {
-	Meta
-}
-
-func (c *ZeroTwelveUpgradeCommand) Run(args []string) int {
-	c.Ui.Output(`
-The 0.12upgrade command has been removed. You must run this command with
-Terraform v0.12 to upgrade your configuration syntax before upgrading to the
-current version.`)
-	return 0
-}
-
-func (c *ZeroTwelveUpgradeCommand) Help() string {
-	helpText := `
-Usage: terraform 0.12upgrade
-
-  The 0.12upgrade command has been removed. You must run this command with
-  Terraform v0.12 to upgrade your configuration syntax before upgrading to
-  the current version.
-`
-	return strings.TrimSpace(helpText)
-}
-
-func (c *ZeroTwelveUpgradeCommand) Synopsis() string {
-	return "Rewrites pre-0.12 module source code for v0.12"
-}

command/012_config_upgrade_test.go

@@ -1,26 +0,0 @@
-package command
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/mitchellh/cli"
-)
-
-func TestZeroTwelveUpgrade_deprecated(t *testing.T) {
-	ui := new(cli.MockUi)
-	c := &ZeroTwelveUpgradeCommand{
-		Meta: Meta{
-			Ui: ui,
-		},
-	}
-
-	if code := c.Run([]string{}); code != 0 {
-		t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
-	}
-
-	output := ui.OutputWriter.String()
-	if !strings.Contains(output, "The 0.12upgrade command has been removed.") {
-		t.Fatal("unexpected output:", output)
-	}
-}

command/013_config_upgrade.go

@@ -1,34 +0,0 @@
-package command
-
-import (
-	"strings"
-)
-
-// ZeroThirteenUpgradeCommand upgrades configuration files for a module
-// to include explicit provider source settings
-type ZeroThirteenUpgradeCommand struct {
-	Meta
-}
-
-func (c *ZeroThirteenUpgradeCommand) Run(args []string) int {
-	c.Ui.Output(`
-The 0.13upgrade command has been removed. You must run this command with
-Terraform v0.13 to upgrade your provider requirements before upgrading to the
-current version.`)
-	return 0
-}
-
-func (c *ZeroThirteenUpgradeCommand) Help() string {
-	helpText := `
-Usage: terraform 0.13upgrade
-
-  The 0.13upgrade command has been removed. You must run this command with
-  Terraform v0.13 to upgrade your provider requirements before upgrading to
-  the current version.
-`
-	return strings.TrimSpace(helpText)
-}
-
-func (c *ZeroThirteenUpgradeCommand) Synopsis() string {
-	return "Rewrites pre-0.13 module source code for v0.13"
-}

command/013_config_upgrade_test.go

@@ -1,26 +0,0 @@
-package command
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/mitchellh/cli"
-)
-
-func TestZeroThirteenUpgrade(t *testing.T) {
-	ui := new(cli.MockUi)
-	c := &ZeroThirteenUpgradeCommand{
-		Meta: Meta{
-			Ui: ui,
-		},
-	}
-
-	if code := c.Run([]string{}); code != 0 {
-		t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
-	}
-
-	output := ui.OutputWriter.String()
-	if !strings.Contains(output, "The 0.13upgrade command has been removed.") {
-		t.Fatal("unexpected output:", output)
-	}
-}

commands.go

@@ -328,18 +328,6 @@ func initCommands(
 		// Plumbing
 		//-----------------------------------------------------------
 
-		"0.12upgrade": func() (cli.Command, error) {
-			return &command.ZeroTwelveUpgradeCommand{
-				Meta: meta,
-			}, nil
-		},
-
-		"0.13upgrade": func() (cli.Command, error) {
-			return &command.ZeroThirteenUpgradeCommand{
-				Meta: meta,
-			}, nil
-		},
-
 		"force-unlock": func() (cli.Command, error) {
 			return &command.UnlockCommand{
 				Meta: meta,
@@ -408,8 +396,6 @@ func initCommands(
 	}
 
 	HiddenCommands = map[string]struct{}{
-		"0.12upgrade":     struct{}{},
-		"0.13upgrade":     struct{}{},
 		"env":             struct{}{},
 		"internal-plugin": struct{}{},
 		"push":            struct{}{},