[FIX] l10n_jp: remove duplicate account code

Two account had the same account code. Because of that, one of them always failed to be created and logged a psql error. To fix that, we totally remove this account, as it never got created anyway.

addons/l10n_jp/data/account.account.template.csv

@@ -9,7 +9,6 @@ A11219,A11219,出庫請求仮,account.data_account_type_current_assets,,FALSE,,l
 A11301,A11301,未収収益,account.data_account_type_current_assets,,FALSE,,l10n_jp1
 A11401,A11401,有価証券,account.data_account_type_current_assets,,FALSE,,l10n_jp1
 A11501,A11501,商品,account.data_account_type_current_assets,,FALSE,,l10n_jp1
-A11503,A11503,製品,account.data_account_type_current_assets,,FALSE,,l10n_jp1
 A11504,A11504,仕掛品,account.data_account_type_current_assets,,FALSE,,l10n_jp1
 A11505,A11505,原材料,account.data_account_type_current_assets,,FALSE,,l10n_jp1
 A11506,A11506,資材,account.data_account_type_current_assets,,FALSE,,l10n_jp1