[AW NS] Remove passing tests from the instrumentation test filter.

Remove some passing android webview instrumentation tests from the filter.

The following tests are passing:

-AwContentsClientShouldInterceptRequestTest.testOnReceivedErrorCallback
  -- due to [1]

-AwContentsClientShouldOverrideUrlLoadingTest.testWindowOpenHttpUrlInPopup
-AwContentsClientShouldOverrideUrlLoadingTest.testWindowOpenHttpUrlInPopupAddsTrailingSlash
  -- bisected, apparently passing since the beginning

[1] https://chromium-review.googlesource.com/c/chromium/src/+/1279171

BUG=841556,893567,893566
TBR=cduvall@chromium.org

Cq-Include-Trybots: master.tryserver.chromium.android:android_mojo

Change-Id: Ie8cce35496fcbd292cc03fa37f449302a643bc93
Reviewed-on: https://chromium-review.googlesource.com/c/1348889
Commit-Queue: Tim Volodine <timvolodine@chromium.org>
Reviewed-by: Tim Volodine <timvolodine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610482}

testing/buildbot/filters/mojo.fyi.network_webview_instrumentation_test_apk.filter

@@ -66,11 +66,6 @@
 -org.chromium.android_webview.test.AwContentsClientShouldInterceptRequestTest.testNotCalledForHttpRedirect
 -org.chromium.android_webview.test.AwContentsClientShouldInterceptRequestTest.testNullInputStreamCausesErrorForMainFrame
 -org.chromium.android_webview.test.AwContentsClientShouldInterceptRequestTest.testOnLoadResourceCalledWithCorrectUrl
--org.chromium.android_webview.test.AwContentsClientShouldInterceptRequestTest.testOnReceivedErrorCallback
-
-# https://crbug.com/893567
--org.chromium.android_webview.test.AwContentsClientShouldOverrideUrlLoadingTest.testWindowOpenHttpUrlInPopup
--org.chromium.android_webview.test.AwContentsClientShouldOverrideUrlLoadingTest.testWindowOpenHttpUrlInPopupAddsTrailingSlash
 
 # https://crbug.com/893568
 -org.chromium.android_webview.test.AwContentsTest.testCanInjectHeaders