Remove gcc3 workaround for bug long since fixed in gcc

Change-Id: Ieb1c41481a79ab8713663caee3d5373640ff0ec8
Reviewed-on: https://gerrit.libreoffice.org/9102
Tested-by: LibreOffice gerrit bot <gerrit@libreoffice.org>
Tested-by: Chris Sherlock <chris.sherlock79@gmail.com>
Reviewed-by: Chris Sherlock <chris.sherlock79@gmail.com>