[A11y]Fix Graph on stats for narrow screen. (#9028)

* Testing new chart title.

* Remove dead lines.

Author: ryuyu

src/NuGetGallery/Scripts/gallery/stats-perpackagestatsgraphs.js

@@ -113,17 +113,6 @@
             .attr("height", function (d) { return height - yScale(d.downloads); })
             .append("title").text(function (d) { return d.downloads + " Downloads"; });
 
-        svg.append("foreignObject")
-            .attr("x", "1.71em")
-            .attr("y", -30)
-            .attr("width", width - 20 + "px")
-            .attr("height", "2em")
-            .attr("font-weight", "bold")
-            .append("xhtml:body")
-            .append("p")
-            .attr("style", "text-align:center")
-            .text("Downloads for 15 Latest Package Versions (Last 6 weeks)");
-
         svg.append("g")
             .attr("class", "y axis")
             .call(yAxis)
@@ -133,6 +122,8 @@
             .attr("dy", ".71em")
             .style("text-anchor", "end")
             .text("Downloads");
+
+        $("#statistics-graph-title-id").text("Downloads for 15 Latest Package Versions (Last 6 weeks)");
     }
 
     var drawDownloadsByClientNameBarChart = function (rawData) {
@@ -222,20 +213,12 @@
             .attr("height", yScale.bandwidth())
             .append("title").text(function (d) { return d.downloads.toLocaleString() + " Downloads"; });
 
-        svg.append("foreignObject")
-            .attr("x", 0)
-            .attr("y", -10)
-            .attr("width", width + "px")
-            .attr("height", "2em")
-            .attr("font-weight", "bold")
-            .append("xhtml:body")
-            .append("p")
-            .attr("style", "text-align:center")
-            .text("Downloads by Client (Last 6 weeks)");
-
         svg.append("g")
             .attr("class", "y axis long")
             .call(yAxis);
+
+
+        $("#statistics-graph-title-id").text("Downloads by Client (Last 6 weeks)");
     }
 
     var GetChartData = function (rawData, filter) {

src/NuGetGallery/Views/Statistics/_PivotTable.cshtml

@@ -48,7 +48,8 @@
                 <div class="loader"></div>
             </div>
             <div class="col-sm-10" id="stats-data-display">
-                <div class="stats-graph col-xs-12 hidden-tiny" id="statistics-graph-id"></div>
+                <div class="stats-graph-title col-xs-12" id="statistics-graph-title-id"></div>
+                <div class="stats-graph col-xs-12" id="statistics-graph-id"></div>
                 <div class="stats-table-data">
                     <table data-bind="if: Table" class="pivot-table table">
                         <thead>