Revert "Hide button caption overflow in reindeer and valo. (#11864)"

Revert "Hide button caption overflow in reindeer and valo. (#11864)"

This reverts commit c9586c93b93987d9b5942c38ef0b536c091092a5.

This fix will break button focus outline in Valo. The overflow hidden needs to be placed on the inner element (v-button-wrap).

For Reindeer the fix is okay, but for consistency it might make sense to move it there to the inner element also.

Change-Id: I6cac9fc6a1c8ae6be9969b8dc8533b9cad118d6a