churn: replace datatables plugin with cdn

otterdog/webapp/static/assets/package.json

@@ -54,21 +54,6 @@
         "bs-stepper": "^1.7.0",
         "chart.js": "^2.9.4",
         "codemirror": "^5.62.3",
-        "datatables.net": "^1.11.1",
-        "datatables.net-autofill-bs4": "^2.3.9",
-        "datatables.net-bs4": "^1.11.1",
-        "datatables.net-buttons-bs4": "^1.7.1",
-        "datatables.net-colreorder-bs4": "^1.5.4",
-        "datatables.net-fixedcolumns-bs4": "^3.3.3",
-        "datatables.net-fixedheader-bs4": "^3.1.9",
-        "datatables.net-keytable-bs4": "^2.6.4",
-        "datatables.net-responsive-bs4": "^2.2.9",
-        "datatables.net-rowgroup-bs4": "^1.1.3",
-        "datatables.net-rowreorder-bs4": "^1.2.8",
-        "datatables.net-scroller-bs4": "^2.0.5",
-        "datatables.net-searchbuilder-bs4": "^1.2.0",
-        "datatables.net-searchpanes-bs4": "^1.4.0",
-        "datatables.net-select-bs4": "^1.3.3",
         "daterangepicker": "^3.1.0",
         "dropzone": "^5.9.2",
         "ekko-lightbox": "^5.3.0",