D20438: Small code simplifications

[Nathaniel Graham]

ngraham added inline comments.

INLINE COMMENTS

> BookmarkHandler.cpp:105
>      }
> +    return {};
>  }

Why not an empty `QUrl()`?

> BookmarkHandler.cpp:145
>      }
> +    return {};
>  }

Why not an empty `QString()`?

REPOSITORY
  R319 Konsole

REVISION DETAIL
  https://phabricator.kde.org/D20438

To: tcanabrava, #konsole, hindenburg
Cc: ngraham, konsole-devel, gennad, thsurrel, maximilianocuria, hindenburg
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