Hello,
Tamper Protection is a Feature that helps protect Symantec Services from being tampered by Threats and other unavoidable things present on the World wide web, network, etc.
Tamper Protection and Proactive Threat Protection are hardcoded and are enabled.
So yes, you can also say Tamper Protection is a protection for Symantec and by Symantec..
But yes, you can surely delete files of Symantec even though Tamper Protection is Turned ON.
We always recommend our Customers to Lock the Tamper Protection Feature for better performance of the same feature.