Avoid legacy numeric constants

Author: purplesyringa

src/arch/all/packedpair/mod.rs

@@ -176,7 +176,7 @@ impl Pair {
             core::mem::swap(&mut rare1, &mut rare2);
             core::mem::swap(&mut index1, &mut index2);
         }
-        let max = usize::from(core::u8::MAX);
+        let max = usize::from(u8::MAX);
         for (i, &b) in needle.iter().enumerate().take(max).skip(2) {
             if ranker.rank(b) < ranker.rank(rare1) {
                 rare2 = rare1;

src/memmem/searcher.rs

@@ -915,7 +915,7 @@ impl PrefilterState {
         // `skipped` to overflow a `u32`. (And we use a `u32` to reduce the
         // size of a prefilter state.)
         self.skipped = match u32::try_from(skipped) {
-            Err(_) => core::u32::MAX,
+            Err(_) => u32::MAX,
             Ok(skipped) => self.skipped.saturating_add(skipped),
         };
     }