Revert "Fix active cell selection when selecting an area via [shift] + click"

This reverts commit 15e62c4.

Author: akksi

components/dash-table/src/dash-table/handlers/cellEvents.ts

@@ -70,8 +70,7 @@ export const handleClick = (
 
     const newProps: Partial<ICellFactoryProps> = {
         is_focused: false,
-        end_cell: clickedCell,
-        active_cell: clickedCell
+        end_cell: clickedCell
     };
 
     if (e.shiftKey && active_cell) {
@@ -86,6 +85,7 @@ export const handleClick = (
             viewport
         );
     } else {
+        newProps.active_cell = clickedCell;
         newProps.start_cell = clickedCell;
         newProps.selected_cells = [clickedCell];
     }