Remove dead #map CSS rule from Map template

The #map functioned as a selector, and the actual rendered ids of maps are formatted as map_<hash>. #{{ this.get_name() }} functions as the rule that handles map styles. #2229 PR deleted this, but #map remained due to folium.py being reverted upstream prior to merging, so it still causes 2186 to fail. After removing #map from the HTML styles in folium.py, test 2186 works.

Author: B-bater26

folium/folium.py

@@ -210,15 +210,6 @@ class Map(JSCSSMixin, Evented):
             }
             </style>
 
-            <style>#map {
-                position:absolute;
-                top:0;
-                bottom:0;
-                right:0;
-                left:0;
-                }
-            </style>
-
             <script>
                 L_NO_TOUCH = {{ this.global_switches.no_touch |tojson}};
                 L_DISABLE_3D = {{ this.global_switches.disable_3d|tojson }};