[Qt] misc small fixes for #3099 (new receive flow)

- changes some strings that were forgotton or made no sense in the conext
  they are used
- remove an orphan file from the qt project file
- revert a small change in signverifymessagedialog.ui
- guard #include "bitcoin-config.h" with #if defined(HAVE_CONFIG_H)
- remove windowTitle from addressbookpage.ui

src/qt/addressbookpage.cpp

@@ -69,7 +69,7 @@ AddressBookPage::AddressBookPage(Mode mode, Tabs tab, QWidget *parent) :
     }
 
     // Context menu actions
-    QAction *copyAddressAction = new QAction(ui->copyAddress->text(), this);
+    QAction *copyAddressAction = new QAction(tr("&Copy Address"), this);
     QAction *copyLabelAction = new QAction(tr("Copy &Label"), this);
     QAction *editAction = new QAction(tr("&Edit"), this);
     deleteAction = new QAction(ui->deleteAddress->text(), this);