Remove GUI from the admin API

package.json

@@ -30,7 +30,6 @@
     "@types/basic-auth": "^1.1.2",
     "@types/body-parser": "^1.17.1",
     "@types/email-templates": "^6.0.0",
-    "@types/escape-html": "0.0.20",
     "@types/express": "^4.17.2",
     "@types/http-errors": "^1.6.2",
     "@types/lodash": "^4.14.144",
@@ -51,7 +50,6 @@
     "ejs": "^2.7.1",
     "email-addresses": "^3.1.0",
     "email-templates": "^6.0.3",
-    "escape-html": "^1.0.3",
     "express": "^4.17.1",
     "http-errors": "^1.7.3",
     "iab_verifier": "^0.1.2",