Merge Ant starter project into jupiter-starter to reduce duplication

Author: marcphilipp

platform-tooling-support-tests/projects/ant-starter/src/main/java/com/example/project/Calculator.java

@@ -35,7 +35,7 @@ class AntStarterTests {
 	@Timeout(60)
 	void ant_starter(@TempDir Path workspace, @FilePrefix("ant") OutputFiles outputFiles) throws Exception {
 		var result = ProcessStarters.java() //
-				.workingDir(copyToWorkspace(Projects.ANT_STARTER, workspace)) //
+				.workingDir(copyToWorkspace(Projects.JUPITER_STARTER, workspace)) //
 				.addArguments("-cp", System.getProperty("antJars"), Main.class.getName()) //
 				.redirectOutput(outputFiles) //
 				.startAndWait();

platform-tooling-support-tests/projects/ant-starter/src/test/java/com/example/project/CalculatorTests.java

@@ -17,7 +17,6 @@
 
 public class Projects {
 
-	public static final String ANT_STARTER = "ant-starter";
 	public static final String GRAALVM_STARTER = "graalvm-starter";
 	public static final String GRADLE_KOTLIN_EXTENSIONS = "gradle-kotlin-extensions";
 	public static final String GRADLE_MISSING_ENGINE = "gradle-missing-engine";