remove deprecated tag from ProjectHelper#configureProject()

it has been used for a long time, and one cannot just
replace it with the non-static parse method, without
setting the "ant.projectHelper" reference.
PR: 32668
Reported by:  Nell Gawor


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@277187 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/ProjectHelper.java

@@ -80,7 +80,6 @@ public class ProjectHelper {
      * @param buildFile An XML file giving the project's configuration.
      *                  Must not be <code>null</code>.
      *
-     * @deprecated Use the non-static parse method
      * @exception BuildException if the configuration is invalid or cannot
      *                           be read
      */