Revert "Revert "poky: subtree update:b23aa6b753..ad30a6d470""

This reverts commit 4873add6e11c1bd421c83cd08df589f1184aa673.

A fix has been put up for openbmc/openbmc#3720 so we can bring
this back now

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: If59020a5b502f70aa7149fbef4ad2f50824d1ce6
diff --git a/poky/scripts/postinst-intercepts/update_font_cache b/poky/scripts/postinst-intercepts/update_font_cache
index 46bdb8c..900db04 100644
--- a/poky/scripts/postinst-intercepts/update_font_cache
+++ b/poky/scripts/postinst-intercepts/update_font_cache
@@ -5,6 +5,8 @@
 
 set -e
 
+rm -f $D${fontconfigcachedir}/CACHEDIR.TAG
+
 PSEUDO_UNLOAD=1 ${binprefix}qemuwrapper -L $D -E ${fontconfigcacheenv} $D${libexecdir}/${binprefix}fc-cache --sysroot=$D --system-only ${fontconfigcacheparams}
 
 chown -R root:root $D${fontconfigcachedir}