We've been running doxygen with the autobrief option for a couple of years now. This makes the \brief markers into our comments redundant. Since they are a visual distraction and we don't want to encourage more \brief markers in new code either, this patch removes them all.
Patch produced by
find . -name '*.cpp' -exec perl -pi -e 's/\\brief //g' \{} \; find . -name '*.h' -exec perl -pi -e 's/\\brief //g' \{} \;