Correct double entry

Author: mdeweerd

codespell_lib/data/dictionary.txt

@@ -9764,7 +9764,6 @@ bluetootn->Bluetooth
 blured->blurred
 blurr->blur, blurred,
 blutooth->Bluetooth
-blutooth->Bluetooth
 blythely->blithely
 blythly->blithely
 bnecause->because