8e155b3eca39175eec7e9c1fe3ecb273e63a438b Release 2.2.0

(Removed one of the UMD headers to make it the same as the ESM build -
it was redundant information)

Sync to source repo @8e155b3eca39175eec7e9c1fe3ecb273e63a438b

datatables.json

@@ -14,5 +14,5 @@
     ],
     "src-repo": "http://github.com/DataTables/DataTablesSrc",
     "last-tag": "2.1.8",
-    "last-sync": "c5876413be0fdb125cb0e05db5c2ca770a436a1b"
+    "last-sync": "8e155b3eca39175eec7e9c1fe3ecb273e63a438b"
 }