Don't double-delete panes. (Potentially KICAD-22T)

(cherry picked from commit 5390e0d7f9)

eeschema/sch_edit_frame.cpp

@@ -471,8 +471,9 @@ SCH_EDIT_FRAME::~SCH_EDIT_FRAME()
         }
     }
 
-    delete m_hierarchy;
-    delete m_selectionFilterPanel;
+    // We passed ownership of these to wxAuiManager.
+    // delete m_hierarchy;
+    // delete m_selectionFilterPanel;
 }
 
 

pcbnew/footprint_edit_frame.cpp

@@ -341,9 +341,10 @@ FOOTPRINT_EDIT_FRAME::~FOOTPRINT_EDIT_FRAME()
     // Clear the watched file
     setFPWatcher( nullptr );
 
-    delete m_selectionFilterPanel;
-    delete m_appearancePanel;
-    delete m_treePane;
+    // We passed ownership of these to wxAuiManager.
+    // delete m_selectionFilterPanel;
+    // delete m_appearancePanel;
+    // delete m_treePane;
 }
 
 

pcbnew/pcb_edit_frame.cpp

@@ -599,11 +599,13 @@ PCB_EDIT_FRAME::~PCB_EDIT_FRAME()
     if( GetBoard() )
         GetBoard()->RemoveAllListeners();
 
-    delete m_selectionFilterPanel;
-    delete m_appearancePanel;
+    // We passed ownership of these to wxAuiManager.
+    // delete m_selectionFilterPanel;
+    // delete m_appearancePanel;
+    // delete m_propertiesPanel;
+    // delete m_netInspectorPanel;
+
     delete m_exportNetlistAction;
-    delete m_propertiesPanel;
-    delete m_netInspectorPanel;
 }