Audio Bug Fix - Remove elevation

[rt4914]

Explanation

In StateFragment, audio was not playable because the entire recyclerview was coming on top of audio player. To fix that I have removed the elevation given to Recyclerview.

Also, if you approve this, directly merge this so that others won't face this issue.

Checklist

• The PR title starts with "Fix #bugnum: ", followed by a short, clear summary of the changes. (If this PR fixes part of an issue, prefix the title with "Fix part of #bugnum: ...".)
• The PR explanation includes the words "Fixes #bugnum: ..." (or "Fixes part of #bugnum" if the PR only partially fixes an issue).
• The PR follows the style guide.
• The PR does not contain any unnecessary auto-generated code from Android Studio.
• The PR is made from a branch that's not called "develop".
• The PR is made from a branch that is up-to-date with "develop".
• The PR's branch is based on "develop" and not on any other branch.
• The PR is assigned to an appropriate reviewer in both the Assignees and the Reviewers sections.

[BenHenning]

Thanks @rt4914! I didn't actually hit this bug (the audio button seems to work for me locally), but I also don't see a need for us to set an elevation for the recycler view.