remove unused functions in benchmarks

Author: Dr-Emann

benches/benchmarks.rs

@@ -183,16 +183,6 @@ fn big_16(c: &mut Criterion) {
     });
 }
 
-fn memchr_finder() -> &'static memchr::memmem::Finder<'static> {
-    static FINDER: OnceLock<memchr::memmem::Finder> = OnceLock::new();
-    FINDER.get_or_init(|| memchr::memmem::Finder::new("xyzzy"))
-}
-
-fn substring() -> &'static SubstringConst {
-    static SUBSTRING: OnceLock<SubstringConst> = OnceLock::new();
-    SUBSTRING.get_or_init(|| SubstringConst::new("xyzzy"))
-}
-
 fn substr(c: &mut Criterion) {
     let mut haystack = prefix_string();
     haystack.push_str("xyzzy");