cleanup in run_tests_scripts
diff --git a/tools/internal_ci/helper_scripts/delete_nonartifacts.sh b/tools/internal_ci/helper_scripts/delete_nonartifacts.sh
index 6c49b73..c7d6ba6 100755
--- a/tools/internal_ci/helper_scripts/delete_nonartifacts.sh
+++ b/tools/internal_ci/helper_scripts/delete_nonartifacts.sh
@@ -24,4 +24,4 @@
# after finishing each build. We only leave files we want to keep:
# - reports and artifacts
# - directory containing the kokoro scripts to prevent deleting a script while being executed.
-time find . -type f -not -iname "*sponge_log.xml" -not -path "./reports/*" -not -path "./artifacts/*" -not -path "./tools/internal_ci/*" -exec rm -f {} +
\ No newline at end of file
+time find . -type f -not -iname "*sponge_log.xml" -not -path "./reports/*" -not -path "./artifacts/*" -not -path "./tools/internal_ci/*" -exec rm -f {} +
diff --git a/tools/internal_ci/linux/grpc_run_tests_matrix.sh b/tools/internal_ci/linux/grpc_run_tests_matrix.sh
index 1018708..4e75152 100755
--- a/tools/internal_ci/linux/grpc_run_tests_matrix.sh
+++ b/tools/internal_ci/linux/grpc_run_tests_matrix.sh
@@ -29,9 +29,6 @@
tools/run_tests/run_tests_matrix.py $RUN_TESTS_FLAGS || FAILED="true"
-# Reveal leftover processes that might be left behind by the build
-ps aux | grep -i kbuilder
-
echo 'Exiting gRPC main test script.'
if [ "$FAILED" != "" ]
diff --git a/tools/internal_ci/macos/grpc_run_tests_matrix.sh b/tools/internal_ci/macos/grpc_run_tests_matrix.sh
index 6e0c2bb..9a43e48 100755
--- a/tools/internal_ci/macos/grpc_run_tests_matrix.sh
+++ b/tools/internal_ci/macos/grpc_run_tests_matrix.sh
@@ -25,14 +25,6 @@
# kill port_server.py to prevent the build from hanging
ps aux | grep port_server\\.py | awk '{print $2}' | xargs kill -9
-# Reveal leftover processes that might be left behind by the build
-ps aux | grep -i kbuilder
-
-# TODO(jtattermusch): better debugging of clock skew, remove once not needed
-date
-
-echo 'Exiting gRPC main test script.'
-
if [ "$FAILED" != "" ]
then
exit 1