Removes headers (#14)

Author: SimonDegrafKern

main.py

@@ -32,5 +32,4 @@ def resolve_kratos_admin(body, response):
 
 @app.get("/healthcheck")
 def healthcheck() -> responses.PlainTextResponse:
-    headers = {"APP": "OK"}
-    return responses.PlainTextResponse("OK", headers=headers)
+    return responses.PlainTextResponse("OK")