revert: re PR bootstrap/57609 (S/390 ESA mode bootstrap failure since r197266)

2013-06-19  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	Revert:
	2013-06-18  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
	
	PR target/57609
	* config/s390/s390.c (s390_chunkify_start): Replace next_real_insn
	with next_active_insn.

From-SVN: r200188