Plugins: Tidy up CLI code (#67723)

* remove dead code and use pkg/plugins for uninstall process

* fix linter

* remove unnecessary cruft

pkg/cmd/grafana-cli/commands/listremote_command.go

@@ -2,13 +2,14 @@ package commands
 
 import (
 	"github.com/grafana/grafana/pkg/cmd/grafana-cli/logger"
+	"github.com/grafana/grafana/pkg/cmd/grafana-cli/services"
 	"github.com/grafana/grafana/pkg/cmd/grafana-cli/utils"
 )
 
 // listRemoteCommand prints out all plugins in the remote repo with latest version supported on current platform.
 // If there are no supported versions for plugin it is skipped.
-func (cmd Command) listRemoteCommand(c utils.CommandLine) error {
-	plugin, err := cmd.Client.ListAllPlugins(c.PluginRepoURL())
+func listRemoteCommand(c utils.CommandLine) error {
+	plugin, err := services.ListAllPlugins(c.PluginRepoURL())
 	if err != nil {
 		return err
 	}