GitLab

- Enables zero-prefix suggestion in Desktop NTP (Omnibox and Realbox)
  and modifies the tests according to the new expectation.
- Removes already enabled features and related fieldtrial params from
  fieldtrial_testing_config.json

Bug: 1075724
Change-Id: I7e63dc5d6532fe8baf83fe358f47c00fa61729d0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2175138
Commit-Queue: Moe Ahmadi <mahmadi@chromium.org>
Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Reviewed-by: Tommy Li <tommycli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#797904}