f simplify substantially

Author: TheBlueMatt

lightning/src/routing/scoring.rs

@@ -602,15 +602,11 @@ impl HistoricalMinMaxBuckets<'_> {
 		let required_decays = now.duration_since(last_updated).as_secs()
 			.checked_div(half_life.as_secs())
 			.map_or(u32::max_value(), |decays| cmp::min(decays, u32::max_value() as u64) as u32);
-		let mut min_buckets = [0; 8];
-		for (idx, bucket) in self.min_liquidity_offset_history.buckets.iter().enumerate() {
-			min_buckets[idx] = (*bucket).checked_shr(required_decays).unwrap_or(0);
-		}
-		let mut max_buckets = [0; 8];
-		for (idx, bucket) in self.max_liquidity_offset_history.buckets.iter().enumerate() {
-			max_buckets[idx] = (*bucket).checked_shr(required_decays).unwrap_or(0);
-		}
-		(min_buckets, max_buckets, required_decays)
+		let mut min_buckets = *self.min_liquidity_offset_history;
+		min_buckets.time_decay_data(required_decays);
+		let mut max_buckets = *self.max_liquidity_offset_history;
+		max_buckets.time_decay_data(required_decays);
+		(min_buckets.buckets, max_buckets.buckets, required_decays)
 	}
 
 	#[inline]