diff -r 058bb3dc685f -r 0b59724cb3f2 web/data/cubicweb.flot.js
--- a/web/data/cubicweb.flot.js	Mon Jan 04 18:40:30 2016 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,45 +0,0 @@
-function showTooltip(x, y, contents) {
-    $('<div id="tooltip">' + contents + '</div>').css({
-        position: 'absolute',
-        display: 'none',
-        top: y + 5,
-        left: x + 5,
-        border: '1px solid #fdd',
-        padding: '2px',
-        'background-color': '#fee',
-        opacity: 0.80
-    }).appendTo("body").fadeIn(200);
-}
-
-var previousPoint = null;
-function onPlotHover(event, pos, item) {
-    var $fig = $(event.target);
-    if (item) {
-        if (previousPoint != item.datapoint) {
-            previousPoint = item.datapoint;
-            $("#tooltip").remove();
-            var x = item.datapoint[0].toFixed(2),
-                y = item.datapoint[1].toFixed(2);
-            if ($fig.data('mode') == 'time') {
-                x = new Date(item.datapoint[0]);
-                var dateformat = $fig.data('dateformat');
-                if (dateformat) {
-                    x = x.strftime(dateformat);
-                } else {
-                    x = x.toLocaleDateString() + ' ' + x.toLocaleTimeString();
-                }
-            } else if (item.datapoint.length == 4) {
-                // NOTE: this has no chance to work with jquery flot >= 0.6 because
-                // jquery flot normalizes datapoints and only keeps 2 columns. Either
-                // use processRawData hook or use the 'dateformat' option.
-                x = new Date(item.datapoint[2]);
-                x = x.strftime(item.datapoint[3]);
-            }
-            showTooltip(item.pageX, item.pageY, item.series.label + ': (' + x + ' ; ' + y + ')');
-        }
-    } else {
-        $("#tooltip").remove();
-        previousPoint = null;
-    }
-}
-