refactor: remove comment as it already in description

Author: alxkm

src/main/java/com/thealgorithms/datastructures/disjointsetunion/DisjointSetUnion.java

@@ -32,7 +32,7 @@ public Node<T> makeSet(final T value) {
      */
     public Node<T> findSet(Node<T> node) {
         if (node != node.parent) {
-            node.parent = findSet(node.parent); // Path compression
+            node.parent = findSet(node.parent);
         }
         return node.parent;
     }