[cogl/cogl-1.18] cogl-winsys-egl-kms: Never set EGL_PLATFORM

[Neil Roberts <nroberts src gnome org>]

commit 8fb9cea4515161effdaee256dd033c36cfa21689
Author: Kristian Høgsberg <krh bitplanet net>
Date:   Thu Apr 17 15:41:27 2014 -0700

    cogl-winsys-egl-kms: Never set EGL_PLATFORM
    
    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>

 cogl/winsys/cogl-winsys-egl-kms.c     |    6 ------
 cogl/winsys/cogl-winsys-egl-wayland.c |    6 ------
 2 files changed, 0 insertions(+), 12 deletions(-)
---
diff --git a/cogl/winsys/cogl-winsys-egl-kms.c b/cogl/winsys/cogl-winsys-egl-kms.c
index 8c4176e..958c80f 100644
--- a/cogl/winsys/cogl-winsys-egl-kms.c
+++ b/cogl/winsys/cogl-winsys-egl-kms.c
@@ -283,12 +283,6 @@ _cogl_winsys_renderer_connect (CoglRenderer *renderer,
   egl_renderer->platform = g_slice_new0 (CoglRendererKMS);
   kms_renderer = egl_renderer->platform;
 
-  /* The EGL API doesn't provide for a way to explicitly select a
-   * platform when the driver can support multiple. Mesa allows
-   * selection using an environment variable though so that's what
-   * we're doing here... */
-  g_setenv ("EGL_PLATFORM", "drm", 1);
-
   kms_renderer->fd = -1;
   kms_renderer->opened_fd = -1;
 
diff --git a/cogl/winsys/cogl-winsys-egl-wayland.c b/cogl/winsys/cogl-winsys-egl-wayland.c
index c631080..2b359cb 100644
--- a/cogl/winsys/cogl-winsys-egl-wayland.c
+++ b/cogl/winsys/cogl-winsys-egl-wayland.c
@@ -242,12 +242,6 @@ _cogl_winsys_renderer_connect (CoglRenderer *renderer,
 
   egl_renderer->platform_vtable = &_cogl_winsys_egl_vtable;
 
-  /* The EGL API doesn't provide for a way to explicitly select a
-   * platform when the driver can support multiple. Mesa allows
-   * selection using an environment variable though so that's what
-   * we're doing here... */
-  g_setenv ("EGL_PLATFORM", "wayland", 1);
-
   if (renderer->foreign_wayland_display)
     {
       wayland_renderer->wayland_display = renderer->foreign_wayland_display;