rm unncesscary assert

[malik672]

step_by and chunks_exact do some assert x = 0 underneath

example:
#[stable(feature = "chunks_exact", since = "1.31.0")] #[rustc_const_unstable(feature = "const_slice_make_iter", issue = "137737")] #[inline] #[track_caller] pub const fn chunks_exact(&self, chunk_size: usize) -> ChunksExact<'_, T> { assert!(chunk_size != 0, "chunk size must be non-zero"); ChunksExact::new(self, chunk_size) }

[codspeed-hq]

CodSpeed Performance Report

Merging this PR will not alter performance

_{Comparing malik672:MMS (6c2d50f) with main (add1b54)}

Summary

✅ 173 untouched benchmarks

[malik672]

CodSpeed Performance Report

Merging this PR will not alter performance

Comparing malik672:MMS (d179737) with main (add1b54)

Summary

✅ 173 untouched benchmarks

should move: https://godbolt.org/z/o6d3W7W5c
but seems like compile is the main bottleneck so this looks like a micro optimization

[malik672]

based on the codspeed treshold of 3%

tthis falls beneath

[malik672]

closing this insignificant in the long run