[S390] use inline assembly contraints available with gcc 3.3.3

Drop support to compile the kernel with gcc versions older than 3.3.3.
This allows us to use the "Q" inline assembly contraint on some more
inline assemblies without duplicating a lot of complex code (e.g. __xchg
and __cmpxchg). The distinction for older gcc versions can be removed
which saves a few lines and simplifies the code.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/irqflags.h

@@ -8,8 +8,6 @@
 
 #include <linux/types.h>
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
 /* store then or system mask. */
 #define __raw_local_irq_stosm(__or)					\
 ({									\
@@ -36,40 +34,6 @@
 	asm volatile("ssm   %0" : : "Q" (__mask) : "memory");		\
 })
 
-#else /* __GNUC__ */
-
-/* store then or system mask. */
-#define __raw_local_irq_stosm(__or)					\
-({									\
-	unsigned long __mask;						\
-	asm volatile(							\
-		"	stosm	0(%1),%2"				\
-		: "=m" (__mask)						\
-		: "a" (&__mask), "i" (__or) : "memory");		\
-	__mask;								\
-})
-
-/* store then and system mask. */
-#define __raw_local_irq_stnsm(__and)					\
-({									\
-	unsigned long __mask;						\
-	asm volatile(							\
-		"	stnsm	0(%1),%2"				\
-		: "=m" (__mask)						\
-		: "a" (&__mask), "i" (__and) : "memory");		\
-	__mask;								\
-})
-
-/* set system mask. */
-#define __raw_local_irq_ssm(__mask)					\
-({									\
-	asm volatile(							\
-		"	ssm	0(%0)"					\
-		: : "a" (&__mask), "m" (__mask) : "memory");		\
-})
-
-#endif /* __GNUC__ */
-
 /* interrupt control.. */
 static inline unsigned long raw_local_irq_enable(void)
 {