Removed unused get_numerics function

tools/kothic/mapcss/Condition.py

@@ -113,12 +113,6 @@ class Condition:
             return set(["*"]) # unknown
         return set([self.params[0]])
 
-    def get_numerics(self):
-        if self.type in ("<", ">", ">=", "<="):
-            return self.params[0]
-        else:
-            return False
-
     def test(self, tags):
         """
         Test a hash against this condition

tools/kothic/mapcss/Rule.py

@@ -79,13 +79,6 @@ class Rule():
                 break
         return a
 
-    def get_numerics(self):
-        a = set()
-        for condition in self.conditions:
-            a.add(condition.get_numerics())
-        a.discard(False)
-        return a
-
 
 def _test_feature_compatibility(f1, f2, tags={}):
     """

tools/kothic/mapcss/StyleChooser.py

@@ -88,16 +88,6 @@ class StyleChooser:
         self.compatible_types = set()
         self.has_evals = False
 
-    def get_numerics(self):
-        """
-        Returns a set of number-compared values.
-        """
-        a = set()
-        for r in self.ruleChains:
-            a.update(r.get_numerics())
-        a.discard(False)
-        return a
-
     def get_interesting_tags(self, ztype, zoom):
         """
         Returns a set of tags that were used in here.