[11] RFR JDK-8196127: Dead code in VersionProps.java.template

[mandy chung]

Trivial fix to remove unused isHeadless variable.

$ hg diff src/java.base/share/classes/java/lang/VersionProps.java.template
diff --git 
a/src/java.base/share/classes/java/lang/VersionProps.java.template 
b/src/java.base/share/classes/java/lang/VersionProps.java.template
--- a/src/java.base/share/classes/java/lang/VersionProps.java.template
+++ b/src/java.base/share/classes/java/lang/VersionProps.java.template
@@ -166,15 +166,8 @@
       * Print version info.
       */
      private static void print(boolean err, boolean newln) {
-        boolean isHeadless = false;
          PrintStream ps = err ? System.err : System.out;

-        /* Report that we're running headless if the property is true */
-        String headless = System.getProperty("java.awt.headless");
-        if ( (headless != null) && (headless.equalsIgnoreCase("true")) ) {
-            isHeadless = true;
-        }
-
          /* First line: platform version. */
          if (err) {
              ps.println(launcher_name + " version \"" + java_version + "\""

Mandy