* rsc/source/parser/rscyacc.cxx no longer exists

* writerfilter/source/rtftok/rtftokenizer.cxx appears to be just fine nowadays?

* sw/source/filter/html/htmltab.cxx used redundant parentheses around a comma
  operator in a while condition, and I see no reason not to remove them (the
  result requires a---reasonable---tweak to loplugin:commaoperator, though)

Change-Id: I451132c700b0ae5a43b03d704156484df897ad5c
Reviewed-on: https://gerrit.libreoffice.org/45213Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>