Use Burp networking methods instead of Java's native java.net.URL

[seisvelas]

SAN-Scanner/BurpExtender.java

Lines 3 to 18 in 7bea893

	/*
	Ideally we'd use a Burp library for networking, instead
	of Java's native URL() class. Unfortunately, the makeHttpRequest()
	method provided by Burp doesn't give us the means to
	analyze SSL certs.
	Other SSL related Burp extensions are also impacted by this limitation
	and resign themselves to the same approach used here. For example,
	SSL Scanner: https://github.com/portswigger/ssl-scanner
	Also uses java.net.URL.
	If Burp ever adds this functionality to their API, we should
	switch to that.
	*/
	import java.net.URL;

Delete that comment and update networking method if Burp ever adds this functionality to their API