Remove serde derives from uddsketch

We don't really need them

Author: feikesteenbergen

crates/udd-sketch/src/lib.rs

@@ -9,6 +9,7 @@ use std::collections::HashMap;
 use ordered_float::OrderedFloat;
 #[cfg(test)]
 use std::collections::HashSet;
+use serde::{Deserialize, Serialize};
 
 #[cfg(test)]
 extern crate quickcheck;
@@ -79,14 +80,14 @@ impl SketchHashKey {
 }
 
 // Entries in the SketchHashMap contain a count and the next valid index of the map.
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq)]
 struct SketchHashEntry {
     count: u64,
     next: SketchHashKey,
 }
 
 // SketchHashMap is a special hash map of SketchHashKey->count that also keeps the equivalent of a linked list of the entries by increasing key value.
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq)]
 struct SketchHashMap {
     map: HashMap<SketchHashKey, SketchHashEntry>,
     head: SketchHashKey,
@@ -253,7 +254,7 @@ impl SketchHashMap {
     }
 }
 
-#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
+#[derive(Clone, Debug, PartialEq)]
 pub struct UDDSketch {
     buckets: SketchHashMap,
     alpha: f64,