refactor: Remove unused booking function and streamline consultation flow handling

Website/buchungen.py

@@ -1,4 +0,0 @@
-# Buchungsrelatet processing 
-
-def buchen(name: str, Straße: str, plz:str, ort:str, ansprech:str, email:str, notes:str, agreements_accepted:str):
-    print("Gebucht")

Website/main.py

@@ -1991,16 +1991,7 @@ def booking_payment():
 
     client = None
     try:
-        if booking_flow == "payment":
-            buchen(
-                name=selected_package,
-                Straße=form_data["billing_street"],
-                plz=form_data["billing_zip"],
-                ort=form_data["billing_city"],
-                ansprech=form_data["contact_person"],
-                email=form_data["contact_email"],
-            )
-
+        if booking_flow == "consultation":
             client, col = _get_collection("chat_messages")
             col.insert_one(
                 {