patch 8.0.1136: W_WIDTH() is always the same

Problem:    W_WIDTH() is always the same.
Solution:   Expand the macro.
diff --git a/src/if_py_both.h b/src/if_py_both.h
index ea8752d..e717646 100644
--- a/src/if_py_both.h
+++ b/src/if_py_both.h
@@ -3875,7 +3875,7 @@
     else if (strcmp(name, "row") == 0)
 	return PyLong_FromLong((long)(self->win->w_winrow));
     else if (strcmp(name, "width") == 0)
-	return PyLong_FromLong((long)(W_WIDTH(self->win)));
+	return PyLong_FromLong((long)(self->win->w_width));
     else if (strcmp(name, "col") == 0)
 	return PyLong_FromLong((long)(self->win->w_wincol));
     else if (strcmp(name, "vars") == 0)