cosmetic: remove sum unnecessary code
diff --git a/src/main/java/org/apache/sling/query/SlingQuery.java b/src/main/java/org/apache/sling/query/SlingQuery.java
index db9a770..08b57f2 100644
--- a/src/main/java/org/apache/sling/query/SlingQuery.java
+++ b/src/main/java/org/apache/sling/query/SlingQuery.java
@@ -21,7 +21,6 @@
 
 import java.util.Iterator;
 
-import org.apache.sling.api.adapter.Adaptable;
 import org.apache.sling.api.resource.Resource;
 import org.apache.sling.api.resource.ResourceResolver;
 import org.apache.sling.query.api.SearchStrategy;
diff --git a/src/main/java/org/apache/sling/query/impl/util/IteratorUtils.java b/src/main/java/org/apache/sling/query/impl/util/IteratorUtils.java
index 6b911af..5f136ff 100644
--- a/src/main/java/org/apache/sling/query/impl/util/IteratorUtils.java
+++ b/src/main/java/org/apache/sling/query/impl/util/IteratorUtils.java
@@ -31,12 +31,10 @@
 		return Arrays.asList(elements).iterator();
 	}
 
-	@SuppressWarnings("unchecked")
 	public static <T> Iterator<T> singleElementIterator(T element) {
 		return Arrays.asList(element).iterator();
 	}
 
-	@SuppressWarnings("unchecked")
 	public static <T> Iterator<T> emptyIterator() {
 		return Arrays.<T> asList().iterator();
 	}
diff --git a/src/test/java/org/apache/sling/query/FilterTest.java b/src/test/java/org/apache/sling/query/FilterTest.java
index acf9664..de1971f 100644
--- a/src/test/java/org/apache/sling/query/FilterTest.java
+++ b/src/test/java/org/apache/sling/query/FilterTest.java
@@ -27,8 +27,6 @@
 import org.apache.sling.query.api.SearchStrategy;
 import org.junit.Test;
 
-import java.util.function.Predicate;
-
 public class FilterTest {
 
 	private Resource tree = TestUtils.getTree();