Remove plasma-on-screensaver-security patch, already in respun tarball and thus no longer applied.

plasma-on-screensaver-security-fix.diff

@@ -1,21 +0,0 @@
-Index: containment.cpp
-===================================================================
---- containment.cpp	(revision 916284)
-+++ containment.cpp	(working copy)
-@@ -1602,12 +1602,10 @@
-         }
- 
-         bool canConfig = unlocked || KAuthorized::authorize("PlasmaAllowConfigureWhenLocked");
--        if (canConfig) {
--            action = actions().action("activity settings");
--            if (action) {
--                action->setVisible(canConfig);
--                action->setEnabled(canConfig);
--            }
-+        action = actions().action("activity settings");
-+        if (action) {
-+            action->setVisible(canConfig);
-+            action->setEnabled(canConfig);
-         }
- 
-         // tell the applets too