Remove accidental duplication (and overwriting) of definition of args passed to cythonize

setup.py

@@ -39,26 +39,6 @@ else:
     ).stdout.split()[0][2:]] # get the first argument which is the library path
 
 
-if platform.system() == 'Windows':
-    compiler_args = ['/std:c++20']
-    compiler_and_linker_args = []
-    if 'NATCAP_INVEST_GDAL_LIB_PATH' not in os.environ:
-        raise RuntimeError(
-            'env variable NATCAP_INVEST_GDAL_LIB_PATH is not defined. '
-            'This env variable is required when building on Windows. If '
-            'using conda to manage your gdal installation, you may set '
-            'NATCAP_INVEST_GDAL_LIB_PATH="$CONDA_PREFIX/Library".')
-    library_dirs = [f'{os.environ["NATCAP_INVEST_GDAL_LIB_PATH"]}/lib']
-    include_dirs.append(f'{os.environ["NATCAP_INVEST_GDAL_LIB_PATH"]}/include')
-else:
-    compiler_args = [subprocess.run(
-        ['gdal-config', '--cflags'], capture_output=True, text=True
-    ).stdout.strip()]
-    compiler_and_linker_args = ['-std=c++20']
-    library_dirs = [subprocess.run(
-        ['gdal-config', '--libs'], capture_output=True, text=True
-    ).stdout.split()[0][2:]] # get the first argument which is the library path
-
 class build_py(_build_py):
     """Command to compile translation message catalogs before building."""