[ServiceBus][Test] remove tests ensuring unexpected sample changes (Azure#23079)

Previously our `build:samples` script would modify samples to import from
source. However, newer sample workflow no longer does this, and the
`build:samples` script now just "echo Obsolete".

This PR removes tests that guard against committing unwanted sample changes.

Author: jeremymeng

sdk/servicebus/service-bus/package.json

@@ -134,7 +134,6 @@
     "@types/chai": "^4.1.6",
     "@types/chai-as-promised": "^7.1.0",
     "@types/debug": "^4.1.4",
-    "@types/glob": "^7.1.1",
     "@types/mocha": "^7.0.2",
     "@types/node": "^12.0.0",
     "@types/uuid": "^8.0.0",
@@ -148,7 +147,6 @@
     "downlevel-dts": "^0.8.0",
     "eslint": "^8.0.0",
     "esm": "^3.2.18",
-    "glob": "^8.0.0",
     "https-proxy-agent": "^5.0.0",
     "karma": "^6.2.0",
     "karma-chrome-launcher": "^3.0.0",