remove test for unused Branca get_templates() (#1919)

Author: Conengmo

tests/test_folium.py

@@ -7,9 +7,7 @@
 import json
 import os
 
-import branca.element
 import geopandas as gpd
-import jinja2
 import numpy as np
 import pandas as pd
 import pytest
@@ -44,13 +42,6 @@ def setup_data():
     return merged.fillna(method="pad")
 
 
-def test_get_templates():
-    """Test template getting."""
-
-    env = branca.utilities.get_templates()
-    assert isinstance(env, jinja2.environment.Environment)
-
-
 def test_location_args():
     """Test some data types for a location arg."""
     location = np.array([45.5236, -122.6750])