Revert "Enable assistive autocorrect by default"

This reverts commit c39af256.

Reason for revert: This will be managed by finch instead.

Original change's description:
> Enable assistive autocorrect by default
>
> Bug: 1111135
> Change-Id: I740d8247b9770392cebc48ba434de775bbc9199a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2412113
> Commit-Queue: John Palmer <jopalmer@chromium.org>
> Commit-Queue: Darren Shen <shend@chromium.org>
> Auto-Submit: John Palmer <jopalmer@chromium.org>
> Reviewed-by: Darren Shen <shend@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#807285}

TBR=shend@chromium.org,jopalmer@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 1111135
Change-Id: Ie3af175cdb992c1a03447681bf60c0035ca4462c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2440084
Commit-Queue: John Palmer <jopalmer@chromium.org>
Commit-Queue: Darren Shen <shend@chromium.org>
Auto-Submit: John Palmer <jopalmer@chromium.org>
Reviewed-by: Darren Shen <shend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812536}

chromeos/constants/chromeos_features.cc

@@ -92,7 +92,7 @@ const base::Feature kAutoScreenBrightness{"AutoScreenBrightness",
 
 // Controls whether to enable assistive autocorrect.
 const base::Feature kAssistAutoCorrect{"AssistAutoCorrect",
-                                       base::FEATURE_ENABLED_BY_DEFAULT};
+                                       base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Controls whether to enable assistive personal information.
 const base::Feature kAssistPersonalInfo{"AssistPersonalInfo",