Remove explicit constructor super() calls

Closes gh-11068

spring-boot-project/spring-boot-tools/spring-boot-antlib/src/main/java/org/springframework/boot/ant/ShareAntlibLoader.java

@@ -33,7 +33,6 @@ public class ShareAntlibLoader extends Task {
 	private String refid;
 
 	public ShareAntlibLoader(Project project) {
-		super();
 		setProject(project);
 	}
 

spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/metadata/ItemMetadata.java

@@ -45,7 +45,6 @@ public final class ItemMetadata implements Comparable<ItemMetadata> {
 	ItemMetadata(ItemType itemType, String prefix, String name, String type,
 			String sourceType, String sourceMethod, String description,
 			Object defaultValue, ItemDeprecation deprecation) {
-		super();
 		this.itemType = itemType;
 		this.name = buildName(prefix, name);
 		this.type = type;

spring-boot-project/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/WarLauncher.java

@@ -37,7 +37,6 @@ public class WarLauncher extends ExecutableArchiveLauncher {
 	private static final String WEB_INF_LIB_PROVIDED = WEB_INF + "lib-provided/";
 
 	public WarLauncher() {
-		super();
 	}
 
 	protected WarLauncher(Archive archive) {

spring-boot-project/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/jar/CentralDirectoryFileHeader.java

@@ -55,7 +55,6 @@ final class CentralDirectoryFileHeader implements FileHeader {
 
 	CentralDirectoryFileHeader(byte[] header, int headerOffset, AsciiBytes name,
 			byte[] extra, AsciiBytes comment, long localHeaderOffset) {
-		super();
 		this.header = header;
 		this.headerOffset = headerOffset;
 		this.name = name;