[Rspamd] Deactivate neural but use a more aggressive learning method (no autolearn)

data/conf/rspamd/local.d/fuzzy_group.conf

@@ -3,12 +3,9 @@ symbols = {
         weight = 2.0;
     }
     "LOCAL_FUZZY_DENIED" {
-        weight = 12.0;
-    }
-    "LOCAL_FUZZY_PROB" {
-        weight = 5.0;
+        weight = 10.0;
     }
     "LOCAL_FUZZY_WHITE" {
-        weight = -3.0;
+        weight = -3.4;
     }
 }