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commit 435fae64a931301ac00930af1eebc28bd9b0c576 upstream.
Also sync with commit 76913d8adb61b5afe28fd3b4ce91feab29e284dd upstream.

* stringrep.c: Delete flush_class_cache

* stringrep.c:  Delete unused ARRAY_SIZE macro and pthread once variable.

Change-Id: I251e827be31842a01a46e409b9ba5a1d7375d7c8
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>