diff --git a/hypothesis-python/src/hypothesis/internal/conjecture/shrinker.py b/hypothesis-python/src/hypothesis/internal/conjecture/shrinker.py
index 9543c02e3e..aaa8f0d66d 100644
--- a/hypothesis-python/src/hypothesis/internal/conjecture/shrinker.py
+++ b/hypothesis-python/src/hypothesis/internal/conjecture/shrinker.py
@@ -689,7 +689,6 @@ def greedy_shrink(self):
                 "redistribute_block_pairs",
                 "lower_blocks_together",
             ]
-            + [dfa_replacement(n) for n in SHRINKING_DFAS]
         )
 
     @derived_value  # type: ignore
diff --git a/hypothesis-python/tests/cover/test_simple_collections.py b/hypothesis-python/tests/cover/test_simple_collections.py
index 1ddb884d46..168205aea5 100644
--- a/hypothesis-python/tests/cover/test_simple_collections.py
+++ b/hypothesis-python/tests/cover/test_simple_collections.py
@@ -106,9 +106,6 @@ def test_sets_of_fixed_length(n):
 
     if n == 0:
         assert x == set()
-    elif n == 3:
-        # very much a hack for growing pains while we migrate the shrinker to the ir!
-        assert x == {-2, 0, 1}
     else:
         assert x == set(range(min(x), min(x) + n))
 
diff --git a/hypothesis-python/tests/quality/test_poisoned_lists.py b/hypothesis-python/tests/quality/test_poisoned_lists.py
index 0d96e32c07..4ff530dbd9 100644
--- a/hypothesis-python/tests/quality/test_poisoned_lists.py
+++ b/hypothesis-python/tests/quality/test_poisoned_lists.py
@@ -67,7 +67,7 @@ def do_draw(self, data):
 @pytest.mark.parametrize("size", [5, 10, 20])
 @pytest.mark.parametrize("p", [0.01, 0.1])
 @pytest.mark.parametrize("strategy_class", [LinearLists, Matrices])
-def test_minimal_poisoned_containers(seed, size, p, strategy_class, monkeypatch):
+def test_minimal_poisoned_containers(seed, size, p, strategy_class):
     elements = Poisoned(p)
     strategy = strategy_class(elements, size)