fix: use correct functions url

Author: anand2312

Diff for: supabase/client.py

@@ -63,15 +63,7 @@ def __init__(
         self.realtime_url: str = f"{supabase_url}/realtime/v1".replace("http", "ws")
         self.auth_url: str = f"{supabase_url}/auth/v1"
         self.storage_url = f"{supabase_url}/storage/v1"
-        is_platform = re.search(r"(supabase\.co)|(supabase\.in)", supabase_url)
-        if is_platform:
-            url_parts = supabase_url.split(".")
-            self.functions_url = (
-                f"{url_parts[0]}.functions.{url_parts[1]}.{url_parts[2]}"
-            )
-
-        else:
-            self.functions_url = f"{supabase_url}/functions/v1"
+        self.functions_url = f"{supabase_url}/functions/v1"
         self.schema: str = options.schema
 
         # Instantiate clients.