client: API/Command to drop imports

node/repo/fsrepo_ds.go

@@ -226,6 +226,8 @@ func (fsr *fsLockedRepo) DeleteDatastore(ns string) error {
 		return xerrors.Errorf("no multi-datastore with at index (namespace %s)", ns)
 	}
 
+	delete(mds, idx)
+
 	if err := ds.Close(); err != nil {
 		return xerrors.Errorf("closing datastore: %w", err)
 	}

node/repo/importmgr/mgr.go

@@ -99,5 +99,14 @@ func (m *Mgr) Info(id int64) (*StoreMeta, error) {
 	return &sm, nil
 }
 
-// m.Info
-// m.Delete
+func (m *Mgr) Remove(id int64) error {
+	if err := m.mds.Delete(id); err != nil {
+		return xerrors.Errorf("removing import: %w", err)
+	}
+
+	if err := m.ds.Delete(datastore.NewKey(fmt.Sprintf("%d", id))); err != nil {
+		return xerrors.Errorf("removing import metadata: %w", err)
+	}
+
+	return nil
+}