Revert "glx: load dri driver with RTLD_LOCAL so dlclose never fails to unload"
This reverts commit e3cc0d90. It breaks too many apps and completely breaks my desktop too. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79469 We'll probably need to re-release all stable versions after this is committed. Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org> (cherry picked from commit 0d5ec2c6)