Drivers: hv: vmbus: remove unused function

Fix the following clang warning:

drivers/hv/ring_buffer.c:89:1: warning: unused function
'hv_set_next_read_location' [-Wunused-function].
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1618381282-119135-1-git-send-email-jiapeng.chong@linux.alibaba.comSigned-off-by: Wei Liu <wei.liu@kernel.org>

drivers/hv/ring_buffer.c

@@ -84,15 +84,6 @@ hv_set_next_write_location(struct hv_ring_buffer_info *ring_info,
 	ring_info->ring_buffer->write_index = next_write_location;
 }
 
-/* Set the next read location for the specified ring buffer. */
-static inline void
-hv_set_next_read_location(struct hv_ring_buffer_info *ring_info,
-		    u32 next_read_location)
-{
-	ring_info->ring_buffer->read_index = next_read_location;
-	ring_info->priv_read_index = next_read_location;
-}
-
 /* Get the size of the ring buffer. */
 static inline u32
 hv_get_ring_buffersize(const struct hv_ring_buffer_info *ring_info)