Remove the app banner navigation heuristic.

chrome/test/data/banners/prompt_test_page.html

Index: chrome/test/data/banners/prompt_test_page.html
diff --git a/chrome/test/data/banners/prompt_test_page.html b/chrome/test/data/banners/prompt_test_page.html
index b460e20071ec818dd69a007df362e1cbd30c823c..095add6be4b360492b270bff233d308b3bb6ccdb 100644
--- a/chrome/test/data/banners/prompt_test_page.html
+++ b/chrome/test/data/banners/prompt_test_page.html
@@ -5,14 +5,11 @@
     <script src="main.js"></script>
     <script>
       function callPrompt(event) {
-        console.log('Re-prompt banner');
         event.prompt();
       }
 
       window.addEventListener('beforeinstallprompt', function(e) {
-        console.log('Preventing banner from appearing');
         e.preventDefault();
-
         setTimeout(callPrompt, 0, e);
       });