style: enable RedundantModifier in checkstyle (#5140)

src/main/java/com/thealgorithms/datastructures/crdt/GCounter.java

@@ -26,7 +26,7 @@ class GCounter {
      *
      * @param n The number of nodes in the cluster.
      */
-    public GCounter(int myId, int n) {
+    GCounter(int myId, int n) {
         this.myId = myId;
         this.n = n;
         this.P = new HashMap<>();

src/main/java/com/thealgorithms/datastructures/crdt/LWWElementSet.java

@@ -26,7 +26,7 @@ class Element {
      * @param timestamp The timestamp associated with the element.
      * @param bias      The bias of the element (ADDS or REMOVALS).
      */
-    public Element(String key, int timestamp, Bias bias) {
+    Element(String key, int timestamp, Bias bias) {
         this.key = key;
         this.timestamp = timestamp;
         this.bias = bias;
@@ -49,7 +49,7 @@ class LWWElementSet {
     /**
      * Constructs an empty LWWElementSet.
      */
-    public LWWElementSet() {
+    LWWElementSet() {
         this.addSet = new HashMap<>();
         this.removeSet = new HashMap<>();
     }

src/main/java/com/thealgorithms/datastructures/crdt/PNCounter.java

@@ -28,7 +28,7 @@ class PNCounter {
      * @param myId The identifier of the current node.
      * @param n    The number of nodes in the cluster.
      */
-    public PNCounter(int myId, int n) {
+    PNCounter(int myId, int n) {
         this.myId = myId;
         this.n = n;
         this.P = new HashMap<>();