Remove code that found its way back into the diff
diff --git a/src/video/mir/SDL_mirwindow.h b/src/video/mir/SDL_mirwindow.h
index 39d5e74..411c148 100644
--- a/src/video/mir/SDL_mirwindow.h
+++ b/src/video/mir/SDL_mirwindow.h
@@ -34,7 +34,6 @@
typedef struct {
SDL_Window* sdl_window;
MIR_Data* mir_data;
- bool software;
MirSurface* surface;
EGLSurface egl_surface;