uacce: delete unneeded variable initialization

mainline inclusion
from mainline-v5.13-rc1
commit f20b2c2a
category: bugfix
bugzilla: 173981
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f20b2c2a07f88c9a7532578674a60e501a07b839



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delete unneeded variable initialization.

Signed-off-by: Kai Ye <yekai13@huawei.com>
Link: https://lore.kernel.org/r/1616749747-3882-1-git-send-email-yekai13@huawei.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mingqiang Ling <lingmingqiang@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>