anv: Replace ::disable_scissor with ::use_rectlists

Meta currently uses screenspace RECTLIST primitives that lie within
the framebuffer rectangle. Since this behavior shouldn't change in the
future, disable the scissor operation whenever rectlists are used.

Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Kristian Høgsberg Kristensen <kristian.h.kristensen@intel.com>

src/intel/vulkan/anv_private.h

@@ -1488,7 +1488,6 @@ struct anv_graphics_pipeline_create_info {
    int8_t color_attachment_count;
 
    bool                                         use_repclear;
-   bool                                         disable_scissor;
    bool                                         disable_vs;
    bool                                         use_rectlist;
 };