[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY

The SET_PERSONALITY macro is always called with a second argument of 0.
Remove the ibcs argument and the various tests to set the PER_SVR4
personality.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 3cad569..261785a 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -166,13 +166,11 @@
 #define ELF_PLATFORM (elf_platform)
 
 #ifndef __s390x__
-#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
+#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
 #else /* __s390x__ */
-#define SET_PERSONALITY(ex, ibcs2)			\
+#define SET_PERSONALITY(ex)				\
 do {							\
-	if (ibcs2)					\
-		set_personality(PER_SVR4);		\
-	else if (current->personality != PER_LINUX32)	\
+	if (current->personality != PER_LINUX32)	\
 		set_personality(PER_LINUX);		\
 	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)	\
 		set_thread_flag(TIF_31BIT);		\