[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/forms/addressbookpage.ui

@@ -10,9 +10,6 @@
     <height>380</height>
    </rect>
   </property>
-  <property name="windowTitle">
-   <string/>
-  </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
     <widget class="QLabel" name="labelExplanation">

src/qt/forms/signverifymessagedialog.ui

@@ -20,7 +20,7 @@
    <item>
     <widget class="QTabWidget" name="tabWidget">
      <property name="currentIndex">
-      <number>1</number>
+      <number>0</number>
      </property>
      <widget class="QWidget" name="tabSignMessage">
       <attribute name="title">