Remove gitops beta and all its subcommands

Given the shift in our application model, and the large-scale changes
it's going to entail, it's a pretty safe bet that the approach this was
taking to solve our directory layout problems is no longer going to
apply. If that turns out not to be the case, we can always restore the
bits of functionality we need from the Git history.

cmd/gitops/root/cmd.go

@@ -13,7 +13,6 @@ import (
 	"github.com/spf13/viper"
 	wego "github.com/weaveworks/weave-gitops/api/v1alpha1"
 	"github.com/weaveworks/weave-gitops/cmd/gitops/add"
-	beta "github.com/weaveworks/weave-gitops/cmd/gitops/beta/cmd"
 	"github.com/weaveworks/weave-gitops/cmd/gitops/delete"
 	"github.com/weaveworks/weave-gitops/cmd/gitops/docs"
 	"github.com/weaveworks/weave-gitops/cmd/gitops/flux"
@@ -133,7 +132,6 @@ func RootCmd(client *resty.Client) *cobra.Command {
 	cobra.CheckErr(rootCmd.PersistentFlags().MarkHidden("git-host-types"))
 
 	rootCmd.AddCommand(install.Cmd)
-	rootCmd.AddCommand(beta.Cmd)
 	rootCmd.AddCommand(uninstall.Cmd)
 	rootCmd.AddCommand(version.Cmd)
 	rootCmd.AddCommand(flux.Cmd)