HTML Imports: Fix yet another FOUC

LayoutTests/fast/html/imports/import-element-removed-flag.html

Index: LayoutTests/fast/html/imports/import-element-removed-flag.html
diff --git a/LayoutTests/fast/html/imports/import-element-removed-flag.html b/LayoutTests/fast/html/imports/import-element-removed-flag.html
index 050aa50c252f26a6b6ac2cdbdea07a991f08cfeb..995d28b31b09e84adb3a7b1dc09ea7605795afd9 100644
--- a/LayoutTests/fast/html/imports/import-element-removed-flag.html
+++ b/LayoutTests/fast/html/imports/import-element-removed-flag.html
@@ -40,7 +40,6 @@ function testDynamicImport()
     dynamicImport = document.createElement("link");
     dynamicImport.setAttribute("rel", "import");
     dynamicImport.setAttribute("href", "resources/bye.html");
-    dynamicImport.addEventListener("load", check);
     document.head.appendChild(dynamicImport);
 }
 
@@ -49,7 +48,6 @@ function testDynamicImportRemovingEagerly()
     dynamicImportEager = document.createElement("link");
     dynamicImportEager.setAttribute("rel", "import");
     dynamicImportEager.setAttribute("href", "resources/setting-greet-var.html");
-    dynamicImportEager.addEventListener("load", check);
     document.head.appendChild(dynamicImportEager);
 
     // Reoving <link> just after appending it.