Removal of user input choice for when both the annuity and the CAPEX, OPEX fix and lifetime are defined

[ciaradunks]

Within pre_processing_costs() (pre_processing.py), it was the case that every time the annuity and other cost parameters are both defined, the user is asked which value they want to take. This is potentially too time-consuming for the user every time they want to re-run a scenario, so instead for now this option has been removed and the annuity will always be replaced by the calculated annuity from the other cost parameters. I have included the code though with the option for the user to decide though, in case this ever becomes a need again in the future:

    elif scenario == "annuity defined all cost params defined":
        # if all parameters are defined, the user is asked if they want to calculate the annuity
        # from the capex, opex_fix and lifetime or use the annuity directly
        logger.info(
            f"All parameters ('capex', 'opex_fix', 'lifetime') and '{annuity_cost}' are "
            f"provided for '{row_name}' in '{element}'."
        )
        while True:
            user_choice = input(
                f"Do you want to calculate the annuity from 'capex', 'opex_fix' and 'lifetime' rather "
                f"than use the annuity value provided in '{annuity_cost}'? (yes/no): "
            ).lower()
            # if the user chooses 'yes', the annuity cost parameter is replaced by the one calculated from
            # the calculate_annuity function
            if user_choice == "yes":
                capacity_cost = calculate_annuity(capex, opex_fix, lifetime, wacc)
                # update the dataframe
                element_df.at[index, annuity_cost] = float(capacity_cost)
                # log info message
                logger.info(
                    f"The annuity ('{annuity_cost}') has been calculated and updated for "
                    f"'{row_name}' in '{element}'."
                )
                # exit the loop
                break
            # if the user chooses 'no', the annuity cost parameter is used directly and the other parameters
            # are ignored
            if user_choice == "no":
                # log warning message
                logging.warning(
                    f"The annuity ('{annuity_cost}') is used directly rather than "
                    f"calculating from other parameters for {row_name} in {element}. This "
                    f"could lead to discrepancies in the results - please check!"
                )
                # exit the loop
                break
            else:
                # if the user enters something other than yes or no, they are asked to re-enter
                # their answer
                logger.info("Invalid choice. Please enter 'yes' or 'no'.")