test: remove split dependency (#49557)

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

spec/package.json

@@ -23,7 +23,6 @@
     "@types/mocha": "^7.0.2",
     "@types/send": "^0.14.5",
     "@types/sinon": "^9.0.4",
-    "@types/split": "^1.0.5",
     "@types/uuid": "^3.4.6",
     "@types/w3c-web-serial": "^1.0.7",
     "@types/ws": "^7.2.0",
@@ -46,7 +45,6 @@
     "q": "^1.5.1",
     "send": "^0.19.0",
     "sinon": "^9.0.1",
-    "split": "^1.0.1",
     "uuid": "^3.3.3",
     "winreg": "1.2.4",
     "ws": "^7.5.10",