feat(libhelm) import libhelm into CE pkg directory [EE-4650] (#8138)

* import libhelm and update some paths

* remove file

* update readme

pkg/libhelm/binary/uninstall.go

@@ -0,0 +1,29 @@
+package binary
+
+import (
+	"github.com/pkg/errors"
+	"github.com/portainer/portainer/pkg/libhelm/options"
+)
+
+var errRequiredUninstallOptions = errors.New("release name is required")
+
+// Uninstall runs `helm uninstall <name> --namespace <namespace>` with specified uninstall options.
+// The uninstall options translate to CLI arguments which are passed in to the helm binary when executing uninstall.
+func (hbpm *helmBinaryPackageManager) Uninstall(uninstallOpts options.UninstallOptions) error {
+	if uninstallOpts.Name == "" {
+		return errRequiredUninstallOptions
+	}
+
+	args := []string{uninstallOpts.Name}
+
+	if uninstallOpts.Namespace != "" {
+		args = append(args, "--namespace", uninstallOpts.Namespace)
+	}
+
+	_, err := hbpm.runWithKubeConfig("uninstall", args, uninstallOpts.KubernetesClusterAccess)
+	if err != nil {
+		return errors.Wrap(err, "failed to run helm uninstall on specified args")
+	}
+
+	return nil
+}