You could create a Automator Service that removes it from the selected html file.
I just created this one which works on my tests. You will need to test it yourself ( use at your own risk in the sense it does not remove the text or removes to much text) But as I say works fine here.
Place the Service Workflow in your Users
In the Finder , crtl + click you html file . The Service will show up in the contextual menu under Services.
Select it and it will remove the numbers.
Hype_Remove_jsNumber.workflow.zip (97.8 KB)
You can also open the Service Workflow in Automator.app to edit or view it.