Revert "increase splitting for large geometries"

This reverts commit 559fe513fa.

Increasing the splitting results in geometries where with rounding
issues at the split points, so that contain operations do not
work as expected anymore.

Fixes #2137.

sql/functions/utils.sql

@@ -426,7 +426,7 @@ DECLARE
   geo RECORD;
 BEGIN
   -- 10000000000 is ~~ 1x1 degree
-  FOR geo IN select quad_split_geometry(geometry, 0.01, 20) as geom LOOP
+  FOR geo IN select quad_split_geometry(geometry, 0.25, 20) as geom LOOP
     RETURN NEXT geo.geom;
   END LOOP;
   RETURN;