8fb9cea451
This environment variable predates the reliable platform detection in mesa and typically just causes crashes when the specified platform doesn't match what's passed in. Aside from being unecessary and problematic it also leaks into the GNOME session, preventing clients from automatically detecting the wayland platform. https://bugzilla.gnome.org/show_bug.cgi?id=728978 Reviewed-by: Neil Roberts <neil@linux.intel.com>