Move budget outside of the core

The budget planning feature is now a plugin
See: https://github.com/kanboard/plugin-budget

assets/js/src/BudgetChart.js

@@ -1,55 +0,0 @@
-function BudgetChart() {
-}
-
-BudgetChart.prototype.execute = function() {
-    var categories = [];
-    var metrics = $("#chart").data("metrics");
-    var labels = $("#chart").data("labels");
-    var inputFormat = d3.time.format("%Y-%m-%d");
-    var outputFormat = d3.time.format($("#chart").data("date-format"));
-
-    var columns = [
-        [labels["in"]],
-        [labels["left"]],
-        [labels["out"]]
-    ];
-
-    var colors = {};
-    colors[labels["in"]] = '#5858FA';
-    colors[labels["left"]] = '#04B404';
-    colors[labels["out"]] = '#DF3A01';
-
-    for (var i = 0; i < metrics.length; i++) {
-        categories.push(outputFormat(inputFormat.parse(metrics[i]["date"])));
-        columns[0].push(metrics[i]["in"]);
-        columns[1].push(metrics[i]["left"]);
-        columns[2].push(metrics[i]["out"]);
-    }
-
-    c3.generate({
-        data: {
-            columns: columns,
-            colors: colors,
-            type : 'bar'
-        },
-        bar: {
-            width: {
-                ratio: 0.25
-            }
-        },
-        grid: {
-            x: {
-                show: true
-            },
-            y: {
-                show: true
-            }
-        },
-        axis: {
-            x: {
-                type: 'category',
-                categories: categories
-            }
-        }
-    });
-};

assets/js/src/Router.js

@@ -27,7 +27,6 @@ jQuery(document).ready(function() {
     router.addRoute('analytic-user-repartition', UserRepartitionChart);
     router.addRoute('analytic-cfd', CumulativeFlowDiagram);
     router.addRoute('analytic-burndown', BurndownChart);
-    router.addRoute('budget-chart', BudgetChart);
     router.addRoute('analytic-avg-time-column', AvgTimeColumnChart);
     router.addRoute('analytic-task-time-column', TaskTimeColumnChart);
     router.addRoute('analytic-lead-cycle-time', LeadCycleTimeChart);