qgsnewhttpconnection: Always enable paging options for WFS 1.1

Paging support is only handled by WFS 2.0. However, some servers
handle paging even if they only expose WFS 1.1. At the moment, when
changing the version number, it has the following effect on the paging
options:
- "maximum": both options can be enabled
- "2.0": both options can be enabled
- "1.1": both options can be enabled
- "1.0": "feature paging" option is always disabled but the "page
size" option can be enabled

With this change, both paging options can be enabled for version
1.1. This allows to try to enable paging for WFS 1.1 if the server
handles it.

src/gui/qgsnewhttpconnection.cpp

@@ -187,10 +187,10 @@ QgsNewHttpConnection::QgsNewHttpConnection( QWidget *parent, ConnectionTypes typ
 void QgsNewHttpConnection::wfsVersionCurrentIndexChanged( int index )
 {
   // For now 2019-06-06, leave paging checkable for some WFS version 1.1 servers with support
-  cmbFeaturePaging->setEnabled( index == WFS_VERSION_MAX || index >= WFS_VERSION_2_0 );
-  const bool pagingNotDisabled = cmbFeaturePaging->currentIndex() != static_cast<int>( QgsNewHttpConnection::WfsFeaturePagingIndex::DISABLED );
-  lblPageSize->setEnabled( pagingNotDisabled && ( index == WFS_VERSION_MAX || index >= WFS_VERSION_1_1 ) );
-  txtPageSize->setEnabled( pagingNotDisabled && ( index == WFS_VERSION_MAX || index >= WFS_VERSION_1_1 ) );
+  const bool pagingOptionsEnabled = ( index == WFS_VERSION_MAX || index >= WFS_VERSION_1_1 );
+  cmbFeaturePaging->setEnabled( pagingOptionsEnabled );
+  lblPageSize->setEnabled( pagingOptionsEnabled );
+  txtPageSize->setEnabled( pagingOptionsEnabled );
   cbxWfsIgnoreAxisOrientation->setEnabled( index != WFS_VERSION_1_0 && index != WFS_VERSION_API_FEATURES_1_0 );
   cbxWfsInvertAxisOrientation->setEnabled( index != WFS_VERSION_API_FEATURES_1_0 );
   wfsUseGml2EncodingForTransactions()->setEnabled( index == WFS_VERSION_1_1 );