Remove functionality for series of calculations

[merkelm]

This feature was unused in the system and can easily be replaced by a script wrapping around solid_dmft.

• Input parameters seedname and jobname are now strings instead of lists of strings
• Unused parameter energy_shift_orbitals removed
• Changed print commands regarding restarting DMFT

[merkelm]

Thanks for checking! I removed this because now dmft_cycle prints which iteration it starts from (as a way to unify the printout between OS and CSC). And as before, dmft_cycle later also prints the number of OS iterations and the "Running iteration: x/x".

[the-hampel]

sounds good. Feel free to merge this.