diff --git a/.kokoro/presubmit_tests_testing.cfg b/.kokoro/presubmit_tests_testing.cfg
deleted file mode 100644
index 314ca1523e01..000000000000
--- a/.kokoro/presubmit_tests_testing.cfg
+++ /dev/null
@@ -1,15 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-# Download secrets from Cloud Storage.
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
-
-# Tell the trampoline which build file to use.
-env_vars: {
-    key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/python-docs-samples/.kokoro/system_tests.sh"
-}
-
-env_vars: {
-    key: "NOX_SESSION"
-    value: "testing and py36 and not appengine"
-}
diff --git a/.kokoro/system_tests_testing.cfg b/.kokoro/system_tests_testing.cfg
deleted file mode 100644
index 314ca1523e01..000000000000
--- a/.kokoro/system_tests_testing.cfg
+++ /dev/null
@@ -1,15 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-# Download secrets from Cloud Storage.
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/python-docs-samples"
-
-# Tell the trampoline which build file to use.
-env_vars: {
-    key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/python-docs-samples/.kokoro/system_tests.sh"
-}
-
-env_vars: {
-    key: "NOX_SESSION"
-    value: "testing and py36 and not appengine"
-}