Address Sonarlint issues.

Author: phipag

powertools-e2e-tests/src/test/java/software/amazon/lambda/powertools/LargeMessageE2ET.java

@@ -147,7 +147,7 @@ void bigSQSMessageOffloadedToS3_shouldLoadFromS3() throws IOException {
     }
 
     @Test
-    void smallSQSMessage_shouldNotReadFromS3() throws IOException {
+    void smallSQSMessage_shouldNotReadFromS3() {
         // GIVEN
         final ExtendedClientConfiguration extendedClientConfig = new ExtendedClientConfiguration()
                 .withPayloadSupportEnabled(s3Client, bucketName);

powertools-e2e-tests/src/test/java/software/amazon/lambda/powertools/LargeMessageIdempotentE2ET.java

@@ -110,8 +110,6 @@ static void tearDown() {
     @Test
     void test_ttlNotExpired_doesNotInsertInDDB_ttlExpired_insertInDDB() throws InterruptedException,
             IOException {
-        int waitMs = 15000;
-
         // GIVEN
         InputStream inputStream = this.getClass().getResourceAsStream("/large_sqs_message.txt");
         String bigMessage = IOUtils.toString(inputStream, StandardCharsets.UTF_8);