[packagechoose] Remove the *package* member

The single-values *package* member in a PackageItem was not used,
so remove it -- to show that it really isn't used. This is prep-
work for putting the package name *back*, as multi-valued,
and using the *packages* module.

src/modules/packagechooser/PackageModel.cpp

@@ -35,23 +35,19 @@ roleNames()
 PackageItem::PackageItem() {}
 
 PackageItem::PackageItem( const QString& a_id,
-                          const QString& a_package,
                           const QString& a_name,
                           const QString& a_description )
     : id( a_id )
-    , package( a_package )
     , name( a_name )
     , description( a_description )
 {
 }
 
 PackageItem::PackageItem( const QString& a_id,
-                          const QString& a_package,
                           const QString& a_name,
                           const QString& a_description,
                           const QString& screenshotPath )
     : id( a_id )
-    , package( a_package )
     , name( a_name )
     , description( a_description )
     , screenshot( screenshotPath )
@@ -60,7 +56,6 @@ PackageItem::PackageItem( const QString& a_id,
 
 PackageItem::PackageItem::PackageItem( const QVariantMap& item_map )
     : id( CalamaresUtils::getString( item_map, "id" ) )
-    , package( CalamaresUtils::getString( item_map, "package" ) )
     , name( CalamaresUtils::Locale::TranslatedString( item_map, "name" ) )
     , description( CalamaresUtils::Locale::TranslatedString( item_map, "description" ) )
     , screenshot( CalamaresUtils::getString( item_map, "screenshot" ) )

src/modules/packagechooser/PackageModel.h

@@ -31,8 +31,6 @@ const NamedEnumTable< PackageChooserMode >& roleNames();
 struct PackageItem
 {
     QString id;
-    // FIXME: unused
-    QString package;
     CalamaresUtils::Locale::TranslatedString name;
     CalamaresUtils::Locale::TranslatedString description;
     QPixmap screenshot;
@@ -44,7 +42,7 @@ struct PackageItem
      * This constructor sets all the text members,
      * but leaves the screenshot blank. Set that separately.
      */
-    PackageItem( const QString& id, const QString& package, const QString& name, const QString& description );
+    PackageItem( const QString& id, const QString& name, const QString& description );
 
     /** @brief Creates a PackageItem from given strings.
      *
@@ -53,7 +51,6 @@ struct PackageItem
      * a filesystem path, whatever QPixmap understands.
      */
     PackageItem( const QString& id,
-                 const QString& package,
                  const QString& name,
                  const QString& description,
                  const QString& screenshotPath );