cleanup: remove duplicate _validate_port method in URLSanitizer

Author: Mavis Cron

security/url_sanitizer.py

@@ -140,21 +140,6 @@ def _check_blocked_ip(self, ip, host):
                     if not (self.allow_private and ip.is_private):
                         raise InvalidURLError(f"Blocked IP address: {host}")
 
-    def _validate_port(self, port: Optional[int]) -> None:
-        """Validate port number against allowed/blocked lists."""
-        if port is None:
-            return
-        if port < 1 or port > 65535:
-            raise InvalidURLError(f"Invalid port number: {port}")
-        if self.allowed_ports is not None:
-            if port not in self.allowed_ports:
-                raise InvalidURLError(
-                    f"Port {port} is not allowed. "
-                    f"Allowed ports: {', '.join(str(p) for p in self.allowed_ports)}"
-                )
-        elif port in self.BLOCKED_PORTS:
-            raise InvalidURLError(f"Blocked port: {port}")
-    
     def _validate_port(self, port: Optional[int]) -> None:
         """Validate port number against allowed/blocked lists."""
         if port is None: