Delete cmd/osbuild-composer-image-definitions

This command is part of the osbuild/images repo, where all image
definitions live. Having it in the osbuild-composer repository does not
add any value.

Signed-off-by: Tomáš Hozza <thozza@redhat.com>

cmd/osbuild-composer-image-definitions/main.go

@@ -1,35 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"fmt"
-	"os"
-
-	"github.com/osbuild/images/pkg/distroregistry"
-)
-
-func main() {
-	definitions := map[string]map[string][]string{}
-	distroRegistry := distroregistry.NewDefault()
-
-	for _, distroName := range distroRegistry.List() {
-		distro := distroRegistry.GetDistro(distroName)
-		for _, archName := range distro.ListArches() {
-			arch, err := distro.GetArch(archName)
-			if err != nil {
-				panic(fmt.Sprintf("failed to get arch %q of distro %q listed in aches list", archName, distroName))
-			}
-			_, ok := definitions[distroName]
-			if !ok {
-				definitions[distroName] = map[string][]string{}
-			}
-			definitions[distroName][archName] = arch.ListImageTypes()
-		}
-	}
-
-	encoder := json.NewEncoder(os.Stdout)
-	err := encoder.Encode(definitions)
-	if err != nil {
-		panic(err)
-	}
-}