disable healthchecks on the rest of the hypothesis tests (#4579)

* disable healthchecks on the rest of the hypothesis tests

* import the right thing
diff --git a/tests/hypothesis/test_padding.py b/tests/hypothesis/test_padding.py
index a433391..fa06bb7 100644
--- a/tests/hypothesis/test_padding.py
+++ b/tests/hypothesis/test_padding.py
@@ -2,12 +2,13 @@
 # 2.0, and the BSD License. See the LICENSE file in the root of this repository
 # for complete details.
 
-from hypothesis import given
+from hypothesis import HealthCheck, given, settings
 from hypothesis.strategies import binary, integers
 
 from cryptography.hazmat.primitives.padding import ANSIX923, PKCS7
 
 
+@settings(suppress_health_check=[HealthCheck.too_slow])
 @given(integers(min_value=1, max_value=255), binary())
 def test_pkcs7(block_size, data):
     # Generate in [1, 31] so we can easily get block_size in bits by
@@ -21,6 +22,7 @@
     assert unpadder.update(padded) + unpadder.finalize() == data
 
 
+@settings(suppress_health_check=[HealthCheck.too_slow])
 @given(integers(min_value=1, max_value=255), binary())
 def test_ansix923(block_size, data):
     a = ANSIX923(block_size=block_size * 8)