general cleanup and unused imports removal

lnbits/extensions/paywall/migrations.py

@@ -1,6 +1,3 @@
-from sqlalchemy.exc import OperationalError  # type: ignore
-
-
 async def m001_initial(db):
     """
     Initial paywalls table.

lnbits/extensions/paywall/views_api.py

@@ -59,8 +59,6 @@ async def api_paywall_create_invoice(
     wallet: WalletTypeInfo = Depends(get_key_type),
 ):
     paywall = await get_paywall(paywall_id)
-    print("PAYW", paywall)
-    print("DATA", data)
 
     if data.amount < paywall.amount:
         raise HTTPException(