remove main_4c file

1. remove second main file which is intended for the unix version

source_code/version_2.3_windows/main_4c.f

-	PROGRAM foresee
-!  main program for 4C
-!  Unix Version
-
-!  14.10.04 Su aktuelles Directory (actDir) hier bestimmen 
-!  16.08.04 Su Schleife ueber run_nr in UP sim_control (File simul.f)
-!  24.03.03 pl Aufruf finish_simul fr flag_end>0
-!  02.12.02 MF Aufruf SimEnv
-!  30.07.02 MF Aufruf SIMENV
-!  29.05.02 Su ip-Schleife fuer SIMENV (flag_multi=5) ueberspringen
-!           call simenv mit Uebergabe von ip
-!  26.04.02 Su call out_var_file
-!  21.11.01 Su flag_end=2 testen
-!  14.05.01 FB call fixclimscen added
-!  18.12.97 BE new structure/name
-!  11.12.97 BE include same changes for multi_runs
-!  27.8.97 BE insert SIM_INI
-!  26.8.97 BE insert DO-LOOP for whole program, until choice=end program
-!  20.3.97 BE Erweiterung/Umstrukturierung Protokollfile
-
-
-!	USE data_out
-	USE data_simul
-!	USE data_stand
-!	USE data_species
-!	IMPLICIT NONE
-!	INTEGER run_nr, ipp
-
-	actDir = ''
-
-	CALL prepare_global
-
-        CALL sim_control
-
-	END PROGRAM foresee
-