try disabling c ext

Author: blink1073

.evergreen/scripts/configure-env.sh

@@ -76,8 +76,6 @@ EOT
 rm -rf $DRIVERS_TOOLS
 BRANCH=master
 ORG=mongodb-labs
-BRANCH=PYTHON-5498
-ORG=blink1073
 git clone --branch $BRANCH https://github.com/$ORG/drivers-evergreen-tools.git $DRIVERS_TOOLS
 
 cat <<EOT > ${DRIVERS_TOOLS}/.env

.evergreen/scripts/kms_tester.py

@@ -80,8 +80,10 @@ def setup_kms(sub_test_name: str) -> None:
 
     write_env("SUCCESS", success)
 
-    # For remote tests, there is no further work required.
+    # For remote tests, there is no further work required, other than to disable C extensions
+    # because the VM doesn't necessarily have the ability to build them.
     if sub_test_type == "remote":
+        write_env("NO_EXT")
         return
 
     if sub_test_target == "azure":