revert test_metrics_factory.py

Author: Magdalena Luz

model/common/tests/common/metrics/unit_tests/test_metrics_factory.py

@@ -7,15 +7,15 @@
 # SPDX-License-Identifier: BSD-3-Clause
 from __future__ import annotations
 
-import numpy as np
+from typing import TYPE_CHECKING
+
 import pytest
 from gt4py.next import backend as gtx_backend
 
 from icon4py.model.common import dimension as dims
 from icon4py.model.common.grid import vertical as v_grid
 from icon4py.model.common.interpolation import interpolation_attributes, interpolation_factory
 from icon4py.model.common.metrics import metrics_attributes as attrs, metrics_factory
-from icon4py.model.common.states.factory import RetrievalType
 from icon4py.model.common.utils import data_allocation as data_alloc
 from icon4py.model.testing import (
     definitions,