unskip instance test

Author: guybedford

test/wpt/status/wasm/jsapi.json

@@ -5,13 +5,6 @@
   "esm-integration/namespace-instance.tentative.any.js": {
     "skip": "pending https://github.com/nodejs/node/pull/59024"
   },
-  "esm-integration/source-phase.tentative.any.js": {
-    "fail": {
-      "expected": [
-        "Source phase identities"
-      ]
-    }
-  },
   "esm-integration/mutable-global-sharing.tentative.any.js": {
     "skip": "v128 SIMD globals broken on big-endian platforms due to a V8 bug"
   },