Step 1: Login to the WHMCS backend admin.
Step 2: Go to Add-ons-> WGS HostX
Step 3: Go to the sidebar and select Advance Page Manager.

Step 4: Edit the page from which you need to remove the block.

Step 5: Drag the Block from the "Assigned Blocks" and Drop to "All Blocks" Section

This will remove that block from the page.