Revert "Align intent picker bubble to the Omnibox."

This reverts commit 23dc294daaabdfef2ae0467cca78302177299fc2.

Reason for revert: This change makes the highlight of the intent pick icon stays after closing the bubble.

Original change's description:
> Align intent picker bubble to the Omnibox.
> 
> Currently the intent picker bubble is aligned to the intent picker icon,
> this CL aligns the intent picker bubble to the Omnibox.
> 
> BUG=986145
> 
> Change-Id: I4940e000b7d9738b4fb886b79efe2edc7b1a18ac
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1715349
> Commit-Queue: Maggie Cai <[email protected]>
> Reviewed-by: Scott Violet <[email protected]>
> Cr-Commit-Position: refs/heads/master@{#681162}

[email protected],[email protected]

Change-Id: I8b69f98708e82a321b5c14ce6a94c6937ab4dcc5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 986145
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1719812
Reviewed-by: Maggie Cai <[email protected]>
Commit-Queue: Maggie Cai <[email protected]>
Cr-Commit-Position: refs/heads/master@{#681200}
1 file changed