Revert "import ProductTree with sage.arith.all"

yyyyx4 · yyyyx4 · commit 8e6d94ca3aae · 2022-12-11T14:35:09.000+08:00
This reverts commit 3ff3cdf.
diff --git a/src/sage/arith/all.py b/src/sage/arith/all.py
@@ -22,8 +22,7 @@
     fundamental_discriminant, squarefree_divisors,
     radical, binomial_coefficients, jacobi_symbol,
     dedekind_sum,
-    prime_factors, prime_range, valuation,
-    ProductTree)
+    prime_factors, prime_range, valuation)
 
 lazy_import('sage.arith.misc', ('Sigma', 'Moebius', 'Euler_Phi'), deprecation=30322)
 
