Revert "filters/syntax-highlighting.sh: work around highlight --force bug"

This reverts commit f50be7fda0a7ab57009169dd5905fcbab8eb5166.

An update with the latest highlight landed in EPEL. This new version
doesn't have the --force bug, so the workaround can now be removed.

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
1 file changed