Remove custom closedConnections module implemented in Phantomas

lib/tools/phantomas/custom_modules/modules/keepAlive/keepAlive.js

@@ -1,37 +0,0 @@
-/**
- * Analyzes if HTTP responses keep the connections alive.
- */
-
-exports.version = '0.1';
-
-exports.module = function(phantomas) {
-    'use strict';
-
-    phantomas.setMetric('closedConnections'); // @desc requests not keeping the connection alive and slowing down the next request @offenders
-
-    var closedConnectionHosts = {};
-
-    phantomas.on('recv', function(entry, res) {
-        var connectionHeader = (entry.headers.Connection || '').toLowerCase();
-        // Taking the protocol in account, in case the same domain is called with two different protocols.
-        var host = entry.protocol + '://' + entry.domain;
-
-        if (connectionHeader.indexOf('close') >= 0) {
-            // Don't blame it immediatly, wait to see if the connection is needed a second time.
-            closedConnectionHosts[host] = entry.url;
-        }
-    });
-
-    phantomas.on('send', function(entry, res) {
-        var host = entry.protocol + '://' + entry.domain;
-        var previousClosedConnection = closedConnectionHosts[host];
-        
-        if (previousClosedConnection) {
-            // There was a closed connection. We can blame it safely now!
-            phantomas.incrMetric('closedConnections');
-            phantomas.addOffender('closedConnections', previousClosedConnection);
-
-            closedConnectionHosts[host] = null;
-        }
-    });
-};