fix(tocco-ui): remove obsolete condition from StyledIcon
fix(tocco-ui): remove obsolete condition from StyledIcon

- Changing line-height if props.dense if false leads to missstyled buttons.
  The removed condition was added to prevent wobbling icons while they spin.
  Actually it was the icon itself which was not perfectly centered, which was
  replaced.

tocco/tocco-client,tocco/tocco-client,tocco/tocco-client