To delete from Lazada:

• Go to the Vendor dashboard.
• Click on Products as shown in the image below:
  
• On clicking Products, it will appear a page as shown in the image below:
  
• In this, you just have to select the checkbox and click on the dropdown in the Bulk Actions tab where you have to click on Delete From Lazada as shown in the image below:
  
• Once you have performed the above step, then click on Apply Button next to Bulk Action to apply the action you performed.