spirv: remove bindings.rs

the one function which was in here previously is just inlined into
gpu.rs

crates/coremem/src/sim/spirv/bindings.rs

@@ -1,4 +0,0 @@
-pub fn entry_points<L: 'static>() -> Option<(&'static str, &'static str)>
-{
-    spirv_backend::entry_points::<L>().into()
-}

crates/coremem/src/sim/spirv/gpu.rs

@@ -10,7 +10,10 @@ use coremem_types::vec::Vec3;
 use coremem_types::mat::{FullyGenericMaterial, Material};
 use coremem_types::step::SimMeta;
 
-use super::bindings::entry_points;
+pub fn entry_points<L: 'static>() -> Option<(&'static str, &'static str)>
+{
+    spirv_backend::entry_points::<L>().into()
+}
 
 pub(super) struct WgpuData {
     step_bind_group_layout: wgpu::BindGroupLayout,

crates/coremem/src/sim/spirv/mod.rs

@@ -11,7 +11,6 @@ use crate::types::vec::Vec3;
 use coremem_types::mat::{FullyGenericMaterial, Material};
 use coremem_types::step::SimMeta;
 
-mod bindings;
 mod gpu;
 use gpu::WgpuData;