Unmask oscpu and productSub

Because Torbutton overrides the 'navigator.oscpu' and 'navigator.productSub' property values in JavaScript, using the 'delete' operator will unmask the actual values from the global object.


User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
oscpu: undefined
productSub: 20030107
Actual oscpu: undefined
Actual productSub: 20030107