Get rid of gettext-tools to speed up bootstrap
recipes: Don't build libvisual plugin The project is extremely out of date, pretty sure no one uses this from our binaries. This is also the only project that currently needs gettext-tools, so removing it will allow us to get rid of that too.
recipes: Don't build gettext-tools anymore We don't need to ship translations in Cerbero, and this shaves off at least 45 min in our Windows build (usually 1-2 hours). If you've been using the translations shipped with the official gstreamer binaries, please see the following issue for the path forward:
#204. We're still building gettext-m4 because it just installs the m4 file to satisfy autoreconf.
build-tools: Pull a reduced set of build tools recipes for UWP
flex.recipe: Remove unnecessary patches and gettext-tools dep flex looks for help2man and disables documentation if it's not found, so we do not need to manually disable it anymore. This saves an autoreconf. Originally added due to:
flex also doesn't need gettext-tools to build.
bison.recipe: Does not need gettext-tools to build