ci: auto-detect the OS instead of relying on NODE_LABELS
And remove WAF_JOBS: waf already defaults to the number of available
CPUs, which is appropriate in most cases, and we can always use the
built-in JOBS variable to override it where necessary.
Change-Id: Ic5bfc2133b39407db3a075bb406eb288f01e0f2d
diff --git a/.jenkins.d/09-cleanup.sh b/.jenkins.d/09-cleanup.sh
new file mode 100755
index 0000000..18a1c04
--- /dev/null
+++ b/.jenkins.d/09-cleanup.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -exo pipefail
+
+PROJ=ndn-cxx
+
+sudo rm -f /usr/local/bin/ndnsec*
+sudo rm -fr /usr/local/include/"$PROJ"
+sudo rm -f /usr/local/lib{,64}/lib"$PROJ"*
+sudo rm -f /usr/local/lib{,64}/pkgconfig/{,lib}"$PROJ".pc