Remove ts-loader as a direct dependency (#3199)

Supercedes #3173

Signed-off-by: Victor Rubezhny <vrubezhny@redhat.com>

Author: vrubezhny

package-lock.json

@@ -176,7 +176,6 @@
 		"sinon-chai": "^3.7.0",
 		"source-map-support": "^0.5.21",
 		"survey-react-ui": "^1.9.89",
-		"ts-loader": "^9.2.6",
 		"typescript": "^4.5.2",
 		"vscode-extension-tester": "^5.2.0"
 	},