pygmt.grdfill: Remove parameter 'no_data' (Deprecated since v0.15.0) (#4344)

Author: yvonnefroehlich

pygmt/src/grdfill.py

@@ -76,10 +76,8 @@ def _validate_params(
 
 
 @fmt_docstring
-# TODO(PyGMT>=0.19.0): Remove the deprecated 'no_data' parameter.
 # TODO(PyGMT>=0.19.0): Remove the deprecated 'mode' parameter.
 # TODO(PyGMT>=0.20.0): Remove the deprecated '*fill' parameters.
-@deprecate_parameter("no_data", "hole", "v0.15.0", remove_version="v0.19.0")
 @deprecate_parameter(
     "constantfill", "constant_fill", "v0.18.0", remove_version="v0.20.0"
 )

pygmt/tests/test_grdfill.py

@@ -131,12 +131,6 @@ def test_grdfill_hole(grid, expected_grid):
     assert result.gmt.registration is GridRegistration.PIXEL
     xr.testing.assert_allclose(a=result, b=expected_grid)
 
-    # Test the deprecated 'no_data' parameter.
-    # TODO(PyGMT>=0.19.0): Remove the following lines.
-    with pytest.warns(FutureWarning):
-        result2 = grdfill(grid=grid_no_nan, constant_fill=20, no_data=-99999)
-    xr.testing.assert_allclose(a=result2, b=expected_grid)
-
 
 def test_grdfill_inquire(grid):
     """