mlx4_core: Kill mlx4_write64_raw()

    
It's a leftover from development that's never used in the real driver.
Signed-off-by: Roland Dreier <rolandd@cisco.com>

include/linux/mlx4/doorbell.h

@@ -52,11 +52,6 @@
 #define MLX4_INIT_DOORBELL_LOCK(ptr)    do { } while (0)
 #define MLX4_GET_DOORBELL_LOCK(ptr)      (NULL)
 
-static inline void mlx4_write64_raw(__be64 val, void __iomem *dest)
-{
-	__raw_writeq((__force u64) val, dest);
-}
-
 static inline void mlx4_write64(__be32 val[2], void __iomem *dest,
 				spinlock_t *doorbell_lock)
 {
@@ -75,12 +70,6 @@ static inline void mlx4_write64(__be32 val[2], void __iomem *dest,
 #define MLX4_INIT_DOORBELL_LOCK(ptr)     spin_lock_init(ptr)
 #define MLX4_GET_DOORBELL_LOCK(ptr)      (ptr)
 
-static inline void mlx4_write64_raw(__be64 val, void __iomem *dest)
-{
-	__raw_writel(((__force u32 *) &val)[0], dest);
-	__raw_writel(((__force u32 *) &val)[1], dest + 4);
-}
-
 static inline void mlx4_write64(__be32 val[2], void __iomem *dest,
 				spinlock_t *doorbell_lock)
 {