Remove unnecessary testRunner.dumpAsText in LayoutTests/fast/dom/shadow

LayoutTests/fast/dom/shadow/user-modify-inheritance.html

Index: LayoutTests/fast/dom/shadow/user-modify-inheritance.html
diff --git a/LayoutTests/fast/dom/shadow/user-modify-inheritance.html b/LayoutTests/fast/dom/shadow/user-modify-inheritance.html
index c420f3fa7e99f6beaf053962900ef6506caea315..1ff88ea357e96631054c5c8739842dcc80701c12 100644
--- a/LayoutTests/fast/dom/shadow/user-modify-inheritance.html
+++ b/LayoutTests/fast/dom/shadow/user-modify-inheritance.html
@@ -17,8 +17,6 @@
 <pre id="console"></pre>
 <script>
 description("Tests to ensure that a '-webkit-user-modify' CSS property is not inherited across shadow boundaries.");
-if (window.testRunner)
-    testRunner.dumpAsText();
 
 function computedStyle(element) {
     return window.getComputedStyle(element).webkitUserModify;