[Fix] delete checking condition on gorm db

[tanut32039]

Fixed: #XXXX

Implementation details

• Deleted checking condition when updating rows, (preventing case that tx hash is the same even new retry, gorm will not update and insert transactions table but signal prices table still be inserted,).

{"detail": "ERROR: insert or update on table \"signal_prices\" violates foreign key constraint \"fk_signal_prices_tx\" (SQLSTATE 23503)"}

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