[Autofill Assistant] Re-enable integration test

This test was failing as a result of crbug/1090314. Re-enabling this
test since the cause has been fixed.

Bug: 1090215
Change-Id: I60ec44e694ef35a408712ee8d0d8e725b57a7e36
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2228838Reviewed-by: Clemens Arbesser <arbesser@google.com>
Commit-Queue: Sandro Maggi <sandromaggi@google.com>
Cr-Commit-Position: refs/heads/master@{#774558}

chrome/android/features/autofill_assistant/javatests/src/org/chromium/chrome/browser/autofill_assistant/AutofillAssistantChromeTabIntegrationTest.java

@@ -419,7 +419,6 @@ public class AutofillAssistantChromeTabIntegrationTest {
 
     @Test
     @MediumTest
-    @DisabledTest(message = "https://crbug.com/1090215")
     public void interactingWithLocationBarHidesAutofillAssistant() {
         ArrayList<ActionProto> list = new ArrayList<>();
         list.add((ActionProto) ActionProto.newBuilder()