Remove generated docs from repo

layers/landcover/README.md

@@ -1,18 +0,0 @@
-# landcover
-
-Landcover is used to describe the physical material at the surface of the earth. At lower zoom levels this is
-from Natural Earth data for glaciers and ice shelves and at higher zoom levels the landcover is implied
-by OSM tags (like `landuse` or `natural`).
-
-## Fields
-
-- **class**: More generalized groups of either `farmland`, `ice`, `wood`, `grass` or `wetland`.
-Use this to assign general colors to the landcover.
-- **subclass**: Original value of either the `landuse`, `natural` or `wetland` tag.
-Use this to do more precise styling.
-
-## Mapping
-
-![](mapping.png)
-
-