Revert "Ui/Sparklines: Remove img src before putting it into DOM"

This reverts commit a75796c64d.

public/js/icinga/loader.js

@@ -269,7 +269,7 @@
             if (this.processRedirectHeader(req)) return;
 
             // div helps getting an XML tree
-            var $resp = $('<div>' + icinga.ui.removeImageSourceFromSparklines(req.responseText) + '</div>');
+            var $resp = $('<div>' + req.responseText + '</div>');
             var active = false;
             var rendered = false;
             var classes;

public/js/icinga/ui.js

@@ -657,22 +657,6 @@
             );
         },
 
-        /**
-         * Find all svg charts and removes src attributes for sparklines
-         *
-         * @param {string} text
-         * @returns {string}
-         */
-        removeImageSourceFromSparklines: function(text) {
-            var match, sourceMatch;
-            var re = new RegExp(/(src=".+chart.php[^"]+")/g);
-            var reSource = new RegExp(/src="([^"]+)"/);
-            while ((match = re.exec(text))) {
-                text = text.replace(match[0], '');
-            }
-            return text;
-        },
-
         initializeControls: function (parent) {
 
             var self = this;