remove Default implementation for TokenBucket
This implementation was not used.
@@ -84,7 +84,7 @@ fn gcd(x: u64, y: u64) -> u64 {
/// TokenBucket provides a lower level interface to rate limiting with a
/// configurable capacity, refill-rate and initial burst.
-#[derive(Clone, Debug, Default, PartialEq)]
+#[derive(Clone, Debug, PartialEq)]
pub struct TokenBucket {
// Bucket defining traits.
size: u64,
