Remove children from view_group when de-selecting.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/16139

(cherry picked from commit 4a25ef164d)

eeschema/tools/ee_selection_tool.cpp

@@ -1956,6 +1956,10 @@ void EE_SELECTION_TOOL::unhighlight( EDA_ITEM* aItem, int aMode, SELECTION* aGro
                         aChild->ClearSelected();
                     else if( aMode == BRIGHTENED )
                         aChild->ClearBrightened();
+                    }
+
+                    if( aGroup )
+                        aGroup->Remove( aChild );
                 } );
     }