no longer complain when not finding tools.jar

People using the JRE won't have it and it has been removed from
OpenJDK with Java 9, it seems.

WHATSNEW

@@ -15,6 +15,12 @@ Fixed bugs:
    surrogate pairs (and likely other edge cases as well).
    Bugzilla Report 40455
 
+Other changes:
+--------------
+
+ * Ant will no longer log a warning if it doesn't find tools.jar
+   Bugzilla Report 63577
+
 Changes from Ant 1.10.7 TO Ant 1.10.8
 =====================================
 

src/main/org/apache/tools/ant/launch/Locator.java

@@ -380,8 +380,6 @@ public final class Locator {
             toolsJar = new File(javaHome + libToolsJar);
         }
         if (!toolsJar.exists()) {
-            System.out.println("Unable to locate tools.jar. "
-                 + "Expected to find it in " + toolsJar.getPath());
             return null;
         }
         return toolsJar;