Remove obsolete code

rust/forge-internal-rs/src/sort.rs

@@ -3,72 +3,6 @@ use anyhow::anyhow;
 const DEPTH_INFINITY: u32 = 0x7c00;
 const DEPTH_SIZE: usize = DEPTH_INFINITY as usize + 1;
 
-#[derive(Default)]
-pub struct OldSortBuffers {
-    pub readback: Vec<u32>,
-    pub ordering: Vec<u32>,
-    pub buckets: Vec<u32>,
-}
-
-impl OldSortBuffers {
-    pub fn ensure_size(&mut self, max_splats: usize) {
-        if self.readback.len() < max_splats {
-            self.readback.resize(max_splats, 0);
-        }
-        if self.ordering.len() < max_splats {
-            self.ordering.resize(max_splats, 0);
-        }
-        if self.buckets.len() < DEPTH_SIZE {
-            self.buckets.resize(DEPTH_SIZE, 0);
-        }
-    }
-}
-
-pub fn old_sort_internal(buffers: &mut OldSortBuffers, total_splats: usize) -> anyhow::Result<u32> {
-    let OldSortBuffers { readback, ordering, buckets } = buffers;
-    let readback = &readback[..total_splats];
-
-    // Set the bucket counts to zero
-    buckets.clear();
-    buckets.resize(DEPTH_SIZE, 0);
-
-    // Count the number of splats in each bucket
-    for &readback_u32 in readback.iter() {
-        let priority = readback_u32 & 0x7FFF;
-        if priority < DEPTH_INFINITY {
-            buckets[priority as usize] += 1;
-        }
-    }
-
-    // Compute bucket starting offset
-    let mut active_splats = 0;
-    for count in buckets.iter_mut() {
-        let new_total = active_splats + *count;
-        *count = active_splats;
-        active_splats = new_total;
-    }
-
-    // Write out splat indices at the right location using bucket offsets
-    for (index, &readback_u32) in readback.iter().enumerate() {
-        let priority = readback_u32 & 0x7FFF;
-        if priority < DEPTH_INFINITY {
-            ordering[buckets[priority as usize] as usize] = index as u32;
-            buckets[priority as usize] += 1;
-        }
-    }
-
-    // Sanity check
-    if buckets[DEPTH_SIZE - 1] != active_splats {
-        return Err(anyhow!(
-            "Expected {} active splats but got {}",
-            active_splats,
-            buckets[DEPTH_SIZE - 1]
-        ));
-    }
-    Ok(active_splats)
-}
-
-
 #[derive(Default)]
 pub struct SortBuffers {
     pub readback: Vec<u16>,