Remove auto height on clone button

Annabel Dunstone Grayrequested to merge
36703-fix-clone-btn-height into master

What does this MR do?

Removes height: auto on the clone button (introduced in !19768 (merged))

Screenshots

Before After
Screen_Shot_2019-11-21_at_12.34.31_PM Screen_Shot_2019-11-21_at_12.32.49_PM Screen_Shot_2019-11-21_at_12.32.43_PM

Closes #36703 (closed)

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