gerbview: Remove empty strings from PCB layer number combobox

gerbview/dialogs/dialog_layers_select_to_pcb_base.cpp

@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////
-// C++ code generated with wxFormBuilder (version 3.10.0-39-g3487c3cb)
+// C++ code generated with wxFormBuilder (version 3.10.0-4761b0c5)
 // http://www.wxformbuilder.org/
 //
 // PLEASE DO *NOT* EDIT THIS FILE!
@@ -96,9 +96,6 @@ LAYERS_MAP_DIALOG_BASE::LAYERS_MAP_DIALOG_BASE( wxWindow* parent, wxWindowID id,
 	m_comboCopperLayersCount->Append( _("28 Layers") );
 	m_comboCopperLayersCount->Append( _("30 Layers") );
 	m_comboCopperLayersCount->Append( _("32 Layers") );
-	m_comboCopperLayersCount->Append( wxEmptyString );
-	m_comboCopperLayersCount->Append( wxEmptyString );
-	m_comboCopperLayersCount->Append( wxEmptyString );
 	bSizerLyrCnt->Add( m_comboCopperLayersCount, 0, wxEXPAND|wxBOTTOM|wxRIGHT|wxLEFT, 5 );
 
 

gerbview/dialogs/dialog_layers_select_to_pcb_base.fbp

@@ -354,7 +354,7 @@
                                                 <property name="caption"></property>
                                                 <property name="caption_visible">1</property>
                                                 <property name="center_pane">0</property>
-                                                <property name="choices">&quot;2 Layers&quot; &quot;4 Layers&quot; &quot;6 Layers&quot; &quot;8 Layers&quot; &quot;10 Layers&quot; &quot;12 Layers&quot; &quot;14 Layers&quot; &quot;16 Layers&quot; &quot;18 Layers&quot; &quot;20 Layers&quot; &quot;22 Layers&quot; &quot;24 Layers&quot; &quot;26 Layers&quot; &quot;28 Layers&quot; &quot;30 Layers&quot; &quot;32 Layers&quot; &quot;&quot; &quot;&quot; &quot;&quot;</property>
+                                                <property name="choices">&quot;2 Layers&quot; &quot;4 Layers&quot; &quot;6 Layers&quot; &quot;8 Layers&quot; &quot;10 Layers&quot; &quot;12 Layers&quot; &quot;14 Layers&quot; &quot;16 Layers&quot; &quot;18 Layers&quot; &quot;20 Layers&quot; &quot;22 Layers&quot; &quot;24 Layers&quot; &quot;26 Layers&quot; &quot;28 Layers&quot; &quot;30 Layers&quot; &quot;32 Layers&quot;</property>
                                                 <property name="close_button">1</property>
                                                 <property name="context_help"></property>
                                                 <property name="context_menu">1</property>

gerbview/dialogs/dialog_layers_select_to_pcb_base.h

@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////
-// C++ code generated with wxFormBuilder (version 3.10.0-39-g3487c3cb)
+// C++ code generated with wxFormBuilder (version 3.10.0-4761b0c5)
 // http://www.wxformbuilder.org/
 //
 // PLEASE DO *NOT* EDIT THIS FILE!