Restore removeCorner transition in PCB editor.

Fixes https://gitlab.com/kicad/code/kicad/issues/13133

pcbnew/tools/pcb_point_editor.cpp

@@ -2409,6 +2409,7 @@ void PCB_POINT_EDITOR::setTransitions()
 {
     Go( &PCB_POINT_EDITOR::OnSelectionChange, ACTIONS::activatePointEditor.MakeEvent() );
     Go( &PCB_POINT_EDITOR::addCorner,         PCB_ACTIONS::pointEditorAddCorner.MakeEvent() );
+    Go( &PCB_POINT_EDITOR::removeCorner,      PCB_ACTIONS::pointEditorRemoveCorner.MakeEvent() );
     Go( &PCB_POINT_EDITOR::changeArcEditMode, PCB_ACTIONS::pointEditorArcKeepCenter.MakeEvent() );
     Go( &PCB_POINT_EDITOR::changeArcEditMode, PCB_ACTIONS::pointEditorArcKeepEndpoint.MakeEvent() );
     Go( &PCB_POINT_EDITOR::changeArcEditMode, ACTIONS::cycleArcEditMode.MakeEvent() );