Remove kservice dependency

It isn't used anywhere

CMakeLists.txt

@@ -11,7 +11,6 @@ find_package(KF5Config REQUIRED)
 find_package(KF5ConfigWidgets REQUIRED)
 find_package(KF5GuiAddons REQUIRED)
 find_package(KF5DBusAddons REQUIRED)
-find_package(KF5Service REQUIRED)
 find_package(PkgConfig REQUIRED)
 find_package(KDecoration2 REQUIRED)
 find_package(GSettingSchemas REQUIRED)

kded/kwin_bridge/CMakeLists.txt

@@ -13,7 +13,6 @@ target_link_libraries(KWinBridge
     KDecoration2::KDecoration
   PRIVATE
     KDecoration2::KDecoration2Private
-    KF5::Service
     KF5::ConfigWidgets
     Qt5::Svg
 )