Revert "Fix some compile warnings"

This reverts commit 533f0508.

D10995 has not been approved.

src/dolphincontextmenu.cpp

@@ -428,7 +428,6 @@ void DolphinContextMenu::addShowMenuBarAction()
 
 bool DolphinContextMenu::placeExists(const QUrl& url) const
 {
-    Q_UNUSED(url)
     // Creating up a PlacesItemModel to find out if 'url' is one of the Places
     // can be expensive because the model asks Solid for the devices which are
     // available, which can take some time.

src/dolphinmainwindow.cpp

@@ -410,8 +410,6 @@ void DolphinMainWindow::closeEvent(QCloseEvent* event)
             case QDialogButtonBox::No:
                 // Close only the current tab
                 m_tabWidget->closeTab();
-                // Do not quit, ignore quit event
-                // fall through
             default:
                 event->ignore();
                 return;

src/dolphintabwidget.cpp

@@ -92,10 +92,7 @@ void DolphinTabWidget::readProperties(const KConfigGroup& group)
         } else {
             // Tab state created with Dolphin <= 4.14.x
             const QByteArray state = group.readEntry("Tab " % QString::number(i), QByteArray());
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
             tabPageAt(i)->restoreStateV1(state);
-#pragma GCC diagnostic pop
         }
     }
 

src/kitemviews/kfileitemmodel.cpp

@@ -246,6 +246,7 @@ QMimeData* KFileItemModel::createMimeData(const KItemSet& indexes) const
     // Copyright (C) 2006 David Faure <faure@kde.org>
     QList<QUrl> urls;
     QList<QUrl> mostLocalUrls;
+    bool canUseMostLocalUrls = true;
     const ItemData* lastAddedItem = nullptr;
 
     for (int index : indexes) {
@@ -268,6 +269,9 @@ QMimeData* KFileItemModel::createMimeData(const KItemSet& indexes) const
 
             bool isLocal;
             mostLocalUrls << item.mostLocalUrl(isLocal);
+            if (!isLocal) {
+                canUseMostLocalUrls = false;
+            }
         }
     }
 

src/kitemviews/kitemlistcontroller.cpp

@@ -433,8 +433,8 @@ bool KItemListController::keyPressEvent(QKeyEvent* event)
                 }
             }
         }
-        // fall through
-        // to the default case and add the Space to the current search string.
+        // Fall through to the default case and add the Space to the current search string.
+
     default:
         m_keyboardManager->addKeys(event->text());
         // Make sure unconsumed events get propagated up the chain. #302329