Remove egl display type setenv hack

No longer needed with mesa 7.12-devel egl display autodetection.

clients/simple-egl.c

@@ -106,7 +106,6 @@ init_egl(struct display *display)
 	EGLint major, minor, n;
 	EGLBoolean ret;
 
-	setenv("EGL_PLATFORM", "wayland", 1);
 	display->egl.dpy = eglGetDisplay(display->display);
 	assert(display->egl.dpy);
 

clients/window.c

@@ -1852,7 +1852,6 @@ init_egl(struct display *d)
 		EGL_NONE
 	};
 
-	setenv("EGL_PLATFORM", "wayland", 1);
 	d->dpy = eglGetDisplay(d->display);
 	if (!eglInitialize(d->dpy, &major, &minor)) {
 		fprintf(stderr, "failed to initialize display\n");

compositor/compositor-drm.c

@@ -331,7 +331,6 @@ init_egl(struct drm_compositor *ec, struct udev_device *device)
 		return -1;
 	}
 
-	setenv("EGL_PLATFORM", "drm", 1);
 	ec->drm.fd = fd;
 	ec->gbm = gbm_create_device(ec->drm.fd);
 	ec->base.display = eglGetDisplay(ec->gbm);

compositor/compositor-openwfd.c

@@ -133,7 +133,6 @@ init_egl(struct wfd_compositor *ec)
 		return -1;
 
 	ec->wfd_fd = fd;
-	setenv("EGL_PLATFORM", "drm", 1);
 	ec->gbm = gbm_create_device(ec->wfd_fd);
 	ec->base.display = eglGetDisplay(ec->gbm);
 	if (ec->base.display == NULL) {

compositor/compositor-wayland.c

@@ -113,7 +113,6 @@ wayland_compositor_init_egl(struct wayland_compositor *c)
 		EGL_NONE
 	};
 
-	setenv("EGL_PLATFORM", "wayland", 1);
 	c->base.display = eglGetDisplay(c->parent.display);
 	if (c->base.display == NULL) {
 		fprintf(stderr, "failed to create display\n");

compositor/compositor-x11.c

@@ -116,7 +116,6 @@ x11_compositor_init_egl(struct x11_compositor *c)
 		EGL_NONE
 	};
 
-	setenv("EGL_PLATFORM", "x11", 1);
 	c->base.display = eglGetDisplay(c->dpy);
 	if (c->base.display == NULL) {
 		fprintf(stderr, "failed to create display\n");

compositor/meego-tablet-shell.c

@@ -492,7 +492,6 @@ launch_ux_daemon(struct meego_tablet_shell *shell)
 
 		snprintf(s, sizeof s, "%d", sv[1]);
 		setenv("WAYLAND_SOCKET", s, 1);
-		setenv("EGL_PLATFORM", "wayland", 1);
 		setenv("QT_QPA_PLATFORM", "waylandgl", 1);
 		if (execl("/usr/libexec/meego-ux-daemon",
 			  "/usr/libexec/meego-ux-daemon", NULL) < 0)