radv: Don't set driver locations for mesh shaders.

They were already unused, just don't set them.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28553>

src/amd/vulkan/radv_pipeline_graphics.c

@@ -1592,13 +1592,6 @@ radv_link_mesh(const struct radv_device *device, struct radv_shader_stage *mesh_
       radv_link_shaders(device, mesh_stage, fs_stage, gfx_state);
    }
 
-   /* ac_nir_lower_ngg ignores driver locations for mesh shaders, but set them to all zero just to
-    * be on the safe side.
-    */
-   nir_foreach_shader_out_variable (var, mesh_stage->nir) {
-      var->data.driver_location = 0;
-   }
-
    /* Lower mesh shader draw ID to zero prevent app bugs from triggering undefined behaviour. */
    if (mesh_stage->info.ms.has_task && BITSET_TEST(mesh_stage->nir->info.system_values_read, SYSTEM_VALUE_DRAW_ID))
       radv_nir_lower_draw_id_to_zero(mesh_stage->nir);