D14360: Remove custom icon selection for trash

[Shubham]

shubham added a reviewer: dfaure.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D14360

To: shubham, ngraham, broulik, #dolphin, #frameworks, dfaure
Cc: pino, kde-frameworks-devel, michaelh, ngraham, bruns