fix: Remove unused Exceptions throws

src/main/java/org/opensearch/tasks/action/RestTaskDeleteAction.java

@@ -23,9 +23,8 @@ public class RestTaskDeleteAction {
      *
      * @param request The RestRequest containing the task ID.
      * @return The DeleteRequest to delete the task.
-     * @throws IOException If an I/O error occurs.
      */
-    public static DeleteRequest deleteRequest(RestRequest request) throws IOException {
+    public static DeleteRequest deleteRequest(RestRequest request) {
         return new DeleteRequest(Task.TASK_INDEX, request.param("id"));
     }
 }

src/main/java/org/opensearch/tasks/action/RestTaskGetAction.java

@@ -24,9 +24,8 @@ public class RestTaskGetAction {
      *
      * @param request The RestRequest containing the task ID.
      * @return The GetRequest to retrieve the task.
-     * @throws IOException If an I/O error occurs.
      */
-    public static GetRequest getRequest(RestRequest request) throws IOException {
+    public static GetRequest getRequest(RestRequest request) {
         GetRequest getRequest = new GetRequest(Task.TASK_INDEX, request.param("id"));
         getRequest.fetchSourceContext(FetchSourceContext.parseFromRestRequest(request));
 

src/main/java/org/opensearch/tasks/handler/RestTaskHandler.java

@@ -65,10 +65,9 @@ public List<Route> routes() {
      * @param request The RestRequest containing the details of the request.
      * @param client The NodeClient to execute the request.
      * @return A RestChannelConsumer to handle the request.
-     * @throws IOException If an I/O error occurs.
      */
     @Override
-    protected RestChannelConsumer prepareRequest(RestRequest request, NodeClient client) throws IOException {
+    protected RestChannelConsumer prepareRequest(RestRequest request, NodeClient client) {
         try {
             switch (request.method()) {
                 case POST: