GitLab

Removes code that was used to scaled the app list main view on small
screens (when apps grid did not fit into the available space).

CL:1759856 changed approach to update the item sizes inside the apps
grid instead. The following is thus no longer necessary:
*   AppsContainerView::GetMinimumSize() override
    -   was used to calculate whether and what scale to use (the usage
        has been removed; not used during container layout
*   ContentsView::GetAppListMainViewScale()
    -   the scale transform on the main view does not get set any
        longer, so the scale should always be 1

Change-Id: I2bcafd63b7e34c2c40167d365cfbe83b192f71e6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1789467Reviewed-by: Alex Newcomer <newcomer@chromium.org>
Commit-Queue: Toni Baržić <tbarzic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#695287}