Switch footprint-locked-can't-remove msg to warning.

Fixes: lp:1689898
* https://bugs.launchpad.net/kicad/+bug/1689898

pcbnew/board_netlist_updater.cpp

@@ -551,7 +551,7 @@ bool BOARD_NETLIST_UPDATER::deleteUnusedComponents( NETLIST& aNetlist )
             {
                 msg.Printf( _( "Footprint %s is locked, skipping removal.\n" ),
                             GetChars( module->GetReference() ) );
-                m_reporter->Report( msg, REPORTER::RPT_INFO );
+                m_reporter->Report( msg, REPORTER::RPT_WARNING );
                 continue;
             }
 

pcbnew/dialogs/dialog_track_via_properties.cpp

@@ -322,7 +322,7 @@ DIALOG_TRACK_VIA_PROPERTIES::DIALOG_TRACK_VIA_PROPERTIES( PCB_BASE_FRAME* aParen
     m_StdButtonsOK->SetDefault();
 
     Layout();
-    
+
     // Pressing ENTER when any of the text input fields is active applies changes
     Connect( wxEVT_TEXT_ENTER, wxCommandEventHandler( DIALOG_TRACK_VIA_PROPERTIES::onOkClick ),
              NULL, this );