Revert "render/egl: skip incompatible EGL devices"

Reverts commit c73e2062.

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.