nir: nir_shader_compiler_options: drop native_integers

Driver which do not support native integers should use a lowering
pass to go from integers to floats.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

src/compiler/glsl/glsl_to_nir.cpp

@@ -263,7 +263,7 @@ glsl_to_nir(struct gl_context *ctx,
 
 nir_visitor::nir_visitor(gl_context *ctx, nir_shader *shader)
 {
-   this->supports_ints = shader->options->native_integers;
+   this->supports_ints = true;
    this->supports_std430 = ctx->Const.UseSTD430AsDefaultPacking;
    this->shader = shader;
    this->is_global = true;