Remove expired digital goods API OT (#811)

Author: dandclark

origin-trials/downstream-trials.json

@@ -7,12 +7,6 @@
             "explainer": "https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/AcquisitionInfo/explainer.md",
             "issue": "Acquisition Info",
             "flag": "msAcquisitionInfo"
-        },{
-            "label": "Digital Goods API",
-            "expiration": "2024-04-31",
-            "repo": "MicrosoftEdge/MSEdgeExplainers",
-            "explainer": "#",
-            "flag": "DigitalGoodsV2"
         },{
             "label": "PointerEvent.deviceId",
             "expiration": "2024-07-01",