Use mock from standard library (#11588)

Instead of the backported version.

1 files changed, 1 insertions, 3 deletions

diff --git a/setup.py b/setup.py

index 812459074a..e113da6782 100755
--- a/setup.py
+++ b/setup.py
@@ -120,9 +120,7 @@ CONDITIONAL_REQUIREMENTS["mypy"] = [
 # Tests assume that all optional dependencies are installed.
 #
 # parameterized_class decorator was introduced in parameterized 0.7.0
-#
-# We use `mock` library as that backports `AsyncMock` to Python 3.6
-CONDITIONAL_REQUIREMENTS["test"] = ["parameterized>=0.7.0", "mock>=4.0.0"]
+CONDITIONAL_REQUIREMENTS["test"] = ["parameterized>=0.7.0"]
 
 CONDITIONAL_REQUIREMENTS["dev"] = (
     CONDITIONAL_REQUIREMENTS["lint"]