ia64: drop unused IA64_FW_EMU ifdef

It's a remnant of deleted hpsim emulation target removed in fc5bad03
("ia64: remove the hpsim platform").

Link: https://lkml.kernel.org/r/20210323224009.240625-1-slyfox@gentoo.orgSigned-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/ia64/kernel/head.S

@@ -404,11 +404,6 @@ start_ap:
 
 	// This is executed by the bootstrap processor (bsp) only:
 
-#ifdef CONFIG_IA64_FW_EMU
-	// initialize PAL & SAL emulator:
-	br.call.sptk.many rp=sys_fw_init
-.ret1:
-#endif
 	br.call.sptk.many rp=start_kernel
 .ret2:	addl r3=@ltoff(halt_msg),gp
 	;;