Enable carousel autoscroll

[mchowning]

Description

Turning on autoscroll on the Discover carousel by removing the feature flag.

internal ref: p1680117820760509/1680117264.777019-slack-C02ATC80MUM

Warning
This PR is targeting the 7.35 release branch. Even though we're close to releasing that, I'm thinking we may want to go ahead and cut a new beta so if there is any issue we have a chance to catch it before release, but let me know what you think.

Testing Instructions

Review the auto scroll testing instructions from #818

Screenshots or Screencast

Screen.Recording.2023-03-29.at.3.37.18.PM.mov

Checklist

• If this is a user-facing change, I have added an entry in CHANGELOG.md
• I have considered whether it makes sense to add tests for my changes
• All strings that need to be localized are in modules/services/localization/src/main/res/values/strings.xml
• Any jetpack compose components I added or changed are covered by compose previews

I have tested any UI changes...

• with different themes
• with a landscape orientation
• with the device set to have a large display and font size
• for accessibility with TalkBack

[ashiagr]

I'm thinking we may want to go ahead and cut a new beta so if there is any issue we have a chance to catch it before release, but let me know what you think.

Sounds good. I included it in 7.35-rc-2 beta release.