Don't fail tests when symlinks are found

Buck runs tests in temporary directories and can clean up the test
output on its own.  Don't complain and fail a test if a symlink is
discovered in the path, instead rely on Buck to cleanup later.

Change-Id: If450191abc7d0fd378d684e16656623f4b59ea7e
diff --git a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/TempFileUtil.java b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/TempFileUtil.java
index 1dad479..ff0ca7b 100644
--- a/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/TempFileUtil.java
+++ b/gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/TempFileUtil.java
@@ -29,7 +29,7 @@
   public static void recursivelyDelete(File dir) throws IOException {
     if (!dir.getPath().equals(dir.getCanonicalPath())) {
       // Directory symlink reaching outside of temporary space.
-      throw new IOException("Refusing to clear symlink " + dir.getPath());
+      return;
     }
     File[] contents = dir.listFiles();
     if (contents != null) {