more cleanup

Signed-off-by: aramissennyeydd <aramis.sennyey@doordash.com>

yarn.lock

@@ -2854,7 +2854,6 @@ __metadata:
     "@backstage/cli": "workspace:^"
     "@backstage/config": "workspace:^"
     "@backstage/errors": "workspace:^"
-    express-promise-router: "npm:^4.1.0"
   languageName: unknown
   linkType: soft
 
@@ -2951,7 +2950,6 @@ __metadata:
     winston-transport: "npm:^4.5.0"
     yauzl: "npm:^3.0.0"
     yn: "npm:^4.0.0"
-    zen-observable: "npm:^0.10.0"
     zod: "npm:^3.22.4"
     zod-to-json-schema: "npm:^3.20.4"
   peerDependencies:
@@ -3104,7 +3102,6 @@ __metadata:
     text-extensions: "npm:^2.4.0"
     uuid: "npm:^11.0.0"
     yn: "npm:^4.0.0"
-    zen-observable: "npm:^0.10.0"
     zod: "npm:^3.22.4"
     zod-to-json-schema: "npm:^3.20.4"
   languageName: unknown