remove fuzzy matching

nodedb.py

@@ -56,16 +56,6 @@ class NodeDB:
     except:
       pass
 
-  def maybe_node_by_fuzzy_mac(self, mac):
-    mac_a = mac.lower()
-
-    for node in self._nodes:
-      for mac_b in node.macs:
-        if is_derived_mac(mac_a, mac_b):
-          return node
-
-    raise KeyError
-
   def maybe_node_by_mac(self, macs):
     for node in self._nodes:
       for mac in macs:
@@ -206,9 +196,6 @@ class NodeDB:
     for mac, alias in aliases.items():
       try:
         node = self.maybe_node_by_mac([mac])
-      except:
-        try:
-          node = self.maybe_node_by_fuzzy_mac(mac)
       except:
         # create an offline node
         node = Node()