refactor: inline _import_from_directory

zfs-backup.py

@@ -356,7 +356,7 @@ class ExternalPool(Pool):
         if self._imported:
             raise ValueError(ALREADY_IMPORTED, self.name)
         self._disk.decrypt()
-        self._import_from_directory(MAPPER_PATH)  # TODO inline?
+        ZFS.import_pool_from_directory(self._name, MAPPER_PATH)
         self._imported = True
 
     def export(self) -> None:
@@ -367,9 +367,6 @@ class ExternalPool(Pool):
         self._imported = False
         print(f"Exported {self.name}. Disk {self._disk.uuid} can be removed.")
 
-    def _import_from_directory(self, directory: Path) -> None:
-        ZFS.import_pool_from_directory(self._name, directory)
-
     def _export_pool(self) -> None:
         # TODO cancel scrub if necessary
         ZFS.export_pool(self._name)