[FIX] Remove Unintentional Expensive Check from SG Uniform Neighbor S…

…ample (#4421)

#4355 accidentally added an expensive check to SG uniform neighbor sample.  This PR reverts that addition.

Authors:
  - Alex Barghi (https://github.com/alexbarghi-nv)

Approvers:
  - Rick Ratzel (https://github.com/rlratzel)

URL: #4421

python/cugraph/cugraph/sampling/uniform_neighbor_sample.py

@@ -353,7 +353,7 @@ def uniform_neighbor_sample(
         else None,
         h_fan_out=fanout_vals,
         with_replacement=with_replacement,
-        do_expensive_check=True,
+        do_expensive_check=False,
         with_edge_properties=with_edge_properties,
         random_state=random_state,
         prior_sources_behavior=prior_sources_behavior,