try not setting TMPDIR to RUNDIR

Signed-off-by: Dr. Jan-Philip Gehrcke <[email protected]>

Author: jgehrcke

tests/bats/Makefile

@@ -110,7 +110,7 @@ tests: image
 		-c "set -ex; cd /cwd; stat $${_RUNDIR}; cat /kubeconfig | head -n2; kubectl get nodes; \
 			echo 'Running k8s cluster cleanup (invasive)... '; \
 			bash tests/bats/cleanup-from-previous-run.sh; \
-			TMPDIR=$${_RUNDIR} bats \
+			bats \
 			--print-output-on-failure \
 			--no-tempdir-cleanup \
 			--timing \