Fix spotless issues

Signed-off-by: Peter Nied <petern@amazon.com>

build.gradle

@@ -460,7 +460,7 @@ sourceSets {
 //add new task that runs integration tests
 task integrationTest(type: Test) {
     doFirst {
-        // Only run resources tests on resource-test CI environments or locally 
+        // Only run resources tests on resource-test CI environments or locally
         if (System.getenv('CI_ENVIRONMENT') == 'resource-test' || System.getenv('CI_ENVIRONMENT') == null) {
             include '**/ResourceFocusedTests.class'
         } else {

src/main/java/org/opensearch/security/ssl/http/netty/Netty4HttpRequestHeaderVerifier.java

@@ -12,7 +12,6 @@
 import io.netty.handler.codec.http.DefaultHttpRequest;
 import io.netty.handler.codec.http.HttpMethod;
 import io.netty.handler.codec.http.HttpRequest;
-import io.netty.util.AttributeKey;
 import io.netty.util.ReferenceCountUtil;
 import org.opensearch.ExceptionsHelper;
 import org.opensearch.common.util.concurrent.ThreadContext;