nvmet: remove unused ctrl->cqs

stable inclusion
from stable-5.10.40
commit 737ccd21342c9c073a1638496dc70dfde9a0274f
bugzilla: 51882
CVE: NA

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[ Upstream commit 6d65aeab ]

remove unused cqs from nvmet_ctrl struct
this will reduce the allocated memory.

Signed-off-by: Amit <amit.engel@dell.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Acked-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>