Platform: removed long-deprecated ScreenedApplication::{front,back}Screen().

Use methods on linked list returned by screens() instead.

src/Magnum/Platform/Screen.h

@@ -141,8 +141,9 @@ template<class Application> class BasicScreen: private Containers::LinkedListIte
         /**
          * @brief Next nearer screen
          *
-         * @see @ref BasicScreenedApplication::frontScreen(),
-         *      @ref BasicScreenedApplication::backScreen()
+         * Use @cpp application().screens().first() @ce to access the front
+         * screen and @cpp application().screens().last() @ce to access the
+         * back screen.
          */
         BasicScreen<Application>* nextNearerScreen() {
             return Containers::LinkedListItem<BasicScreen<Application>, BasicScreenedApplication<Application>>::previous();
@@ -155,8 +156,9 @@ template<class Application> class BasicScreen: private Containers::LinkedListIte
         /**
          * @brief Next farther screen
          *
-         * @see @ref BasicScreenedApplication::frontScreen(),
-         *      @ref BasicScreenedApplication::backScreen()
+         * Use @cpp application().screens().first() @ce to access the front
+         * screen and @cpp application().screens().last() @ce to access the
+         * back screen.
          */
         BasicScreen<Application>* nextFartherScreen() {
             return Containers::LinkedListItem<BasicScreen<Application>, BasicScreenedApplication<Application>>::next();

src/Magnum/Platform/ScreenedApplication.h

@@ -176,31 +176,6 @@ template<class Application> class BasicScreenedApplication: public Application,
             return static_cast<const Containers::LinkedList<BasicScreen<Application>>&>(*this);
         }
 
-        #ifdef MAGNUM_BUILD_DEPRECATED
-        /**
-         * @brief Front screen
-         * @deprecated Use `screens().first()` instead.
-         */
-        CORRADE_DEPRECATED("use screens().first() instead") BasicScreen<Application>* frontScreen() { return screens().first(); }
-
-        /** @overload
-         * @deprecated Use `screens().first()` instead.
-         */
-        CORRADE_DEPRECATED("use screens().first() instead") const BasicScreen<Application>* frontScreen() const { return screens().first(); }
-
-        /**
-         * @brief Back screen
-         * @deprecated Use `screens().last()` instead.
-         */
-        CORRADE_DEPRECATED("use screens().last() instead") BasicScreen<Application>* backScreen() { return screens().last(); }
-
-        /**
-         * @overload
-         * @deprecated Use `screens().last()` instead.
-         */
-        CORRADE_DEPRECATED("use screens().last() instead") const BasicScreen<Application>* backScreen() const { return screens().last(); }
-        #endif
-
     protected:
         /* Nobody will need to have (and delete) ScreenedApplication*, thus
            this is faster than public pure virtual destructor */