fix CSP issue

Author: dmlvr

apps/demos/Demos/DataGrid/PDFExportImages/jQuery/index.html

@@ -11,10 +11,6 @@
       integrity="sha512-+EeCylkt9WHJk5tGJxYdecHOcXFRME7qnbsfeMsdQL6NUPYm2+uGFmyleEqsmVoap/f3dN/sc3BX9t9kHXkHHg=="
       crossorigin="anonymous"
     ></script>
-    <script>
-      window.jsPDF = window.jspdf.jsPDF;
-    </script>
-
     <script src="../../../../node_modules/jquery/dist/jquery.min.js"></script>
     <link rel="stylesheet" type="text/css" href="../../../../node_modules/devextreme-dist/css/dx.light.css" />
     <script src="../../../../node_modules/devextreme-dist/js/dx.all.js"></script>

apps/demos/Demos/DataGrid/PDFExportMultipleGrids/jQuery/index.html

@@ -15,9 +15,6 @@
       integrity="sha512-+EeCylkt9WHJk5tGJxYdecHOcXFRME7qnbsfeMsdQL6NUPYm2+uGFmyleEqsmVoap/f3dN/sc3BX9t9kHXkHHg=="
       crossorigin="anonymous"
     ></script>
-    <script>
-      window.jsPDF = window.jspdf.jsPDF;
-    </script>
     <script src="data.js"></script>
     <script src="index.js"></script>
   </head>