use master

Author: prashantmital

.evergreen/run-tests.sh

@@ -152,7 +152,7 @@ if [ -n "$TEST_ENCRYPTION" ]; then
         exit 1
     fi
 
-    git clone --branch PYTHON-2371/new-fle-keystores git@github.com:prashantmital/libmongocrypt.git libmongocrypt_git
+    git clone --branch master git@github.com:com:mongodb/libmongocrypt.git libmongocrypt_git
     $PYTHON -m pip install --upgrade ./libmongocrypt_git/bindings/python
     # TODO: use a virtualenv
     trap "$PYTHON -m pip uninstall -y pymongocrypt" EXIT HUP