Android: Remove 1 lint suppression

This suppression was added for autofill assistant, but now that
https://crrev.com/c/1340160 has landed, it is no longer necessary.

Bug: 900912
Change-Id: I69cd099762c4c66d88b1c56ecd948cd2f12a1cd3
Reviewed-on: https://chromium-review.googlesource.com/c/1340512
Commit-Queue: Mohamed Heikal <mheikal@chromium.org>
Reviewed-by: Mohamed Heikal <mheikal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609332}

build/android/lint/suppressions.xml

@@ -271,10 +271,6 @@ Still reading?
   <issue id="ResourceType" severity="Error">
     <ignore regexp="/javatests/"/>
   </issue>
-  <issue id="RedundantNamespace">
-    <!-- Please do not add any additional suppressions here with the exception of the 1 file below -->
-    <ignore regexp="chrome/android/java/res_autofill_assistant/layout/init_screen.xml"/>
-  </issue>
   <!-- TODO(crbug.com/831774): Play Services starts complaining about RestrictedApi. Needs investigation -->
   <issue id="RestrictedApi" severity="ignore"/>
   <issue id="RtlCompat" severity="ignore"/>