Revert "render/egl: skip incompatible EGL devices"

Reverts commit c73e20628a.

This caused a regression in the GLES2 renderer because `egl->exts.EXT_device_drm` is set in
`egl_init_display()`, which is invoked after `get_egl_device_from_drm_fd()`. So the function will
always return `EGL_NO_DEVICE_EXT`.

render/egl.c

@@ -446,11 +446,6 @@ static EGLDeviceEXT get_egl_device_from_drm_fd(struct wlr_egl *egl,
 		return EGL_NO_DEVICE_EXT;
 	}
 
-	if (!egl->exts.EXT_device_drm) {
-		wlr_log(WLR_DEBUG, "EGL_EXT_device_drm not supported");
-		return EGL_NO_DEVICE_EXT;
-	}
-
 	EGLint nb_devices = 0;
 	if (!egl->procs.eglQueryDevicesEXT(0, NULL, &nb_devices)) {
 		wlr_log(WLR_ERROR, "Failed to query EGL devices");