Avoid use after free in RowColumnManager.cpp

Fixes CID 10862

src/libs/alm/RowColumnManager.cpp

@@ -69,7 +69,7 @@ RowColumnManager::RemoveArea(Area* area)
 		if (row->fAreas.CountItems() == 0) {
 			fRows.RemoveItem(row);
 			delete row;
-		}
+		} else
 			_UpdateConstraints(row);
 	}
 
@@ -80,7 +80,7 @@ RowColumnManager::RemoveArea(Area* area)
 		if (column->fAreas.CountItems() == 0) {
 			fColumns.RemoveItem(column);
 			delete column;
-		}
+		} else
 			_UpdateConstraints(column);
 	}
 }