Remove unused imports.

Author: darius

logic.py

@@ -32,13 +32,12 @@
 """
 
 from utils import (
-    removeall, unique, first, argmax, probability, num_or_str,
+    removeall, unique, first, argmax, probability,
     isnumber, issequence, Symbol, Expr, expr, subexpressions
 )
 import agents
 
 import itertools
-import re
 import random
 from collections import defaultdict
 

utils.py

@@ -7,7 +7,6 @@
 import operator
 import os.path
 import random
-import re
 import math
 
 # ______________________________________________________________________________