Assure latest (default) Eclipse-JDT version is used for testing.

Author: fvgh

plugin-maven/src/test/java/com/diffplug/spotless/maven/java/EclipseFormatStepTest.java

@@ -26,7 +26,6 @@ void testEclipse() throws Exception {
 		writePomWithJavaSteps(
 				"<eclipse>",
 				"  <file>${basedir}/formatter.xml</file>",
-				"  <version>4.7.1</version>",
 				"</eclipse>");
 		setFile("formatter.xml").toResource("java/eclipse/formatter.xml");