No longer require the workaround for the collatz example

Author: DJMcNab

examples/runners/wgpu/builder/src/main.rs

@@ -31,8 +31,7 @@ fn main() -> Result<(), Box<dyn Error>> {
     // We need the int8 capability for using `Option`
     build_shader(
         "../../../shaders/compute-shader",
-        false,
-        &[Capability::Int8],
+        false
     )?;
     build_shader("../../../shaders/mouse-shader", false, &[])?;
     Ok(())

examples/shaders/compute-shader/src/lib.rs

@@ -44,13 +44,5 @@ pub fn main_cs(
     #[spirv(storage_buffer, descriptor_set = 0, binding = 0)] prime_indices: &mut [u32],
 ) {
     let index = id.x as usize;
-    prime_indices[index] = unwrap_or_max(collatz(prime_indices[index]));
-}
-
-// Work around https://github.com/EmbarkStudios/rust-gpu/issues/677
-fn unwrap_or_max(option: Option<u32>) -> u32 {
-    match option {
-        Some(inner) => inner,
-        None => u32::MAX,
-    }
+    prime_indices[index] = collatz(prime_indices[index]).unwrap_or(u32::MAX);
 }