target/s390x: drop BE_BIT()

Unused and broken, let's just get rid of it.
Acked-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20170720123721.12366-2-david@redhat.com>
Signed-off-by: NCornelia Huck <cohuck@redhat.com>

target/s390x/cpu_features.h

@@ -92,6 +92,5 @@ typedef struct {
 const S390FeatGroupDef *s390_feat_group_def(S390FeatGroup group);
 
 #define BE_BIT_NR(BIT) (BIT ^ (BITS_PER_LONG - 1))
-#define BE_BIT(BIT) (1ULL < BE_BIT_NR(BIT))
 
 #endif /* TARGET_S390X_CPU_FEATURES_H */