Drivers: hv: vmbus: Remove unused linux/version.h header

That file is not needed in hv.c.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qiheng Lin <linqiheng@huawei.com>
Link: https://lore.kernel.org/r/20210331060646.2471-1-linqiheng@huawei.com


Signed-off-by: Wei Liu <wei.liu@kernel.org>