Remove unused gmt_version variable in tests (#1896)

Author: seisman

pygmt/tests/test_grdimage.py

@@ -4,15 +4,11 @@
 import numpy as np
 import pytest
 import xarray as xr
-from packaging.version import Version
-from pygmt import Figure, clib
+from pygmt import Figure
 from pygmt.datasets import load_earth_relief
 from pygmt.exceptions import GMTInvalidInput
 from pygmt.helpers.testing import check_figures_equal
 
-with clib.Session() as _lib:
-    gmt_version = Version(_lib.info["version"])
-
 
 @pytest.fixture(scope="module", name="grid")
 def fixture_grid():

pygmt/tests/test_legend.py

@@ -2,14 +2,10 @@
 Tests for legend.
 """
 import pytest
-from packaging.version import Version
-from pygmt import Figure, clib
+from pygmt import Figure
 from pygmt.exceptions import GMTInvalidInput
 from pygmt.helpers import GMTTempFile
 
-with clib.Session() as _lib:
-    gmt_version = Version(_lib.info["version"])
-
 
 @pytest.mark.mpl_image_compare
 def test_legend_position():