Fix inaccurate info about Safari SIP (#2217)

Author: mfwmyfacewhen

docs/mobile-browsers.md

@@ -132,8 +132,6 @@ On iOS, any app that can browse the web is [restricted](https://developer.apple.
     ![Safari logo](assets/img/browsers/safari.svg){ align=right }
 
     **Safari** is the default browser in iOS. It includes [privacy features](https://support.apple.com/guide/iphone/browse-the-web-privately-iphb01fc3c85/15.0/ios/15.0) such as [Intelligent Tracking Prevention](https://webkit.org/blog/7675/intelligent-tracking-prevention/), Privacy Report, isolated and ephemeral Private Browsing tabs, iCloud Private Relay, and fingerprinting reduction by presenting a simplified version of the system configuration to websites so more devices look identical.
-    
-    Safari is restricted to Apple devices and is covered by [System Integrity Protection](https://support.apple.com/guide/security/system-integrity-protection-secb7ea06b49/web), a security feature which limits system programs and files to being read-only so they can't be tampered with by you or malware.
 
     [:octicons-home-16: Homepage](https://www.apple.com/safari/){ .md-button .md-button--primary }
     [:octicons-eye-16:](https://www.apple.com/legal/privacy/data/en/safari/){ .card-link title="Privacy Policy" }