Remove temporary try-ahem tests

LayoutTests/resources/ahem.js

Index: LayoutTests/resources/ahem.js
diff --git a/LayoutTests/resources/ahem.js b/LayoutTests/resources/ahem.js
index a0488eca3f501b7f01fcdf93db66aa162a956e3b..23e01b770a74f25fb92fd0fad8b251e5273a927c 100644
--- a/LayoutTests/resources/ahem.js
+++ b/LayoutTests/resources/ahem.js
@@ -10,7 +10,7 @@
   window.addEventListener('DOMContentLoaded', function() {
     var style = document.createElement('style');
     style.appendChild(document.createTextNode(
-      '@font-face { font-family: myahem; src: url(' + relativePath + '/Ahem.ttf'));
+      '@font-face { font-family: Ahem; src: url(' + relativePath + '/Ahem.ttf); }'));
     document.head.appendChild(style);
     // Force a layout to start loading the font.
     document.documentElement.offsetTop;