[kde-base/plasma-workspace] Remove unused patch.

Package-Manager: portage-2.2.14
[kde-base/plasma-desktop] Remove unused patch.

Package-Manager: portage-2.2.14
[kde-base/kwin] Remove unused patch.

Package-Manager: portage-2.2.14
[kde-base/pykde4] Remove unused patch.

Package-Manager: portage-2.2.14