ElideUrl: Remove the simple version introduced for VR

To display a URL on the VR omnibox, a simplified version of ElideUrl was
introduced.  Since its inception, VR has incorporated UX's guidance and
pivoted to use a simpler fade-based elision approach.

The previously-used string-based system is no longer needed.

BUG=

Change-Id: I33aa58bd903e09426b5c156576ef4c9ad0ec631e
Reviewed-on: https://chromium-review.googlesource.com/881954
Reviewed-by: Scott Violet <[email protected]>
Reviewed-by: Adrienne Porter Felt <[email protected]>
Reviewed-by: Bret Sepulveda <[email protected]>
Commit-Queue: Christopher Grant <[email protected]>
Cr-Commit-Position: refs/heads/master@{#531569}
3 files changed