re-enable inputs tast tests in Chromium CQ

below tests are stable now and running in ChromiumOS CQ.

inputs.VirtualKeyboardOOBE.stable
inputs.VirtualKeyboardAccessibility.stable  inputs.VirtualKeyboardChangeInput.stable  inputs.VirtualKeyboardDeadKeys.french_stable      inputs.VirtualKeyboardTypingApps.stable    inputs.VirtualKeyboardTypingBrowser.stable

BUG=b:174521942
TEST=none

Change-Id: I822f947794683183a2370c4c280c94bde1cb625c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2567052Reviewed-by: Leo Zhang <googleo@chromium.org>
Commit-Queue: Jun Sheng <shengjun@chromium.org>
Commit-Queue: David Vallet <dvallet@chromium.org>
Cr-Commit-Position: refs/heads/master@{#833536}

chromeos/BUILD.gn

@@ -270,7 +270,6 @@ if (is_chromeos_device) {
     tast_disabled_tests = [
       # crbug.com/1115622
       "ui.ChromeLoginGAIA",
-      "inputs.VirtualKeyboardOOBE.stable",
 
       # crbug.com/1097630
       "security.OpenFDs",
@@ -318,13 +317,6 @@ if (is_chromeos_device) {
       "printer.PinPrintLexmark.no_pin",
       "printer.PinPrintLexmark.pin",
 
-      # crbug.com/1147607
-      "inputs.VirtualKeyboardAccessibility.stable",
-      "inputs.VirtualKeyboardChangeInput.stable",
-      "inputs.VirtualKeyboardDeadKeys.french_stable",
-      "inputs.VirtualKeyboardTypingApps.stable",
-      "inputs.VirtualKeyboardTypingBrowser.stable",
-
       # crbug.com/1148036
       "ui.ExistingUserLogin",
       "ui.SigninProfileExtension",