[kde-base] Remove KDE SC 4.12.3

Moved to main tree.

Package-Manager: portage-2.2.8-r1
[profiles/package.mask] Remove KDE SC 4.12.3
[kde-base] Remove KDE Workspace 4.11.7

Moved to the main tree.

Package-Manager: portage-2.2.8-r1
[profiles/package.mask] Remove KDE Workspace 4.11.7