[Techinal Debt] Cleanup ABI vs. Tunnel CLI commands

[NO TESTS NEEDED]

This commit cleans up two issues:
* Most commands support all EngineModes so default to that. Let
  outlayers declare their intent.
* Use cobra.Annotations to set supported EngineMode. This simplies
  instantiating commands as there is now one method to communicate a
  commands requirements rather than two.
* Combined aliased commands into one file
* Fixed aliased commands where Args field did not match
* Updated examples in README.md for writing commands
* Remove redundant flag DisableFlagsInUseLine in cobra.Command
  initialization.

Signed-off-by: Jhon Honce <jhonce@redhat.com>

1 files changed, 0 insertions, 32 deletions

diff --git a/cmd/podman/images/images.go b/cmd/podman/images/images.go
deleted file mode 100644
index 17fe21911..000000000
--- a/cmd/podman/images/images.go
+++ /dev/null
@@ -1,32 +0,0 @@
-package images
-
-import (
-	"strings"
-
-	"github.com/containers/podman/v3/cmd/podman/registry"
-	"github.com/containers/podman/v3/pkg/domain/entities"
-	"github.com/spf13/cobra"
-)
-
-var (
-	// podman _images_  Alias for podman image _list_
-	imagesCmd = &cobra.Command{
-		Use:                   strings.Replace(listCmd.Use, "list", "images", 1),
-		Args:                  listCmd.Args,
-		Short:                 listCmd.Short,
-		Long:                  listCmd.Long,
-		RunE:                  listCmd.RunE,
-		ValidArgsFunction:     listCmd.ValidArgsFunction,
-		Example:               strings.Replace(listCmd.Example, "podman image list", "podman images", -1),
-		DisableFlagsInUseLine: true,
-	}
-)
-
-func init() {
-	registry.Commands = append(registry.Commands, registry.CliCommand{
-		Mode:    []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
-		Command: imagesCmd,
-	})
-
-	imageListFlagSet(imagesCmd)
-}