treewide: Stop lowering legacy atomics

There are no more producers of legacy atomics so these calls are inert.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23036>

src/broadcom/compiler/vir.c

@@ -617,9 +617,6 @@ type_size_vec4(const struct glsl_type *type, bool bindless)
 static void
 v3d_lower_nir(struct v3d_compile *c)
 {
-        /* FIXME: drop once GLSL/SPIR-V produce the new intrinsics. */
-        NIR_PASS(_, c->s, nir_lower_legacy_atomics);
-
         struct nir_lower_tex_options tex_options = {
                 .lower_txd = true,
                 .lower_tg4_broadcom_swizzle = true,

src/broadcom/vulkan/v3dv_pipeline.c

@@ -1708,9 +1708,6 @@ pipeline_lower_nir(struct v3dv_pipeline *pipeline,
    assert(pipeline->shared_data &&
           pipeline->shared_data->maps[p_stage->stage]);
 
-   /* Temporary stopgap until legacy atomics are removed in core */
-   NIR_PASS_V(p_stage->nir, nir_lower_legacy_atomics);
-
    NIR_PASS_V(p_stage->nir, nir_vk_lower_ycbcr_tex,
               lookup_ycbcr_conversion, layout);