The simple way you can unlink toplane from jungle -

This has already been suggested multiple times in different forms but... here goes again.

1. Change the passive to only proc on players and large monsters (drakes, herald, etc).

2. Change the passive to give armor + attack speed + magic resistance

3. Remove attack speed from E .... Add back the bonus monster damage (150%)

4. Modify the rest of the stats accordingly till the champion seems balanced.

This way you can nerf wukong's E bonus damage whenever he gets out of hand in jungle, but you use the Passive to balance out wukong toplane. In toplane you have to contest lane pretty often so you will be dueling the enemy champions a lot.