fix(upload-assets-to-s3): remove obsolete AWS SDK code

Author: ivomurrell

package-lock.json

@@ -27,7 +27,6 @@
   "bugs": "https://github.com/financial-times/dotcom-tool-kit/issues",
   "homepage": "https://github.com/financial-times/dotcom-tool-kit/tree/main/plugins/upload-assets-to-s3",
   "devDependencies": {
-    "@aws-sdk/types": "^3.775.0",
     "@jest/globals": "^27.4.6",
     "@types/glob": "^7.1.3",
     "@types/jest": "^27.4.0",