wifi: ath10k: Remove the unused function shadow_dst_wr_ind_addr() and ath10k_ce_error_intr_enable()

The function shadow_dst_wr_ind_addr() and ath10k_ce_error_intr_enable()
are defined in the ce.c file, the code calling them has been removed,
so remove these unused functions.

Eliminate the following warnings:
drivers/net/wireless/ath/ath10k/ce.c:80:19: warning: unused function 'shadow_dst_wr_ind_addr'
drivers/net/wireless/ath/ath10k/ce.c:441:20: warning: unused function 'ath10k_ce_error_intr_enable'

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4063


Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230215014058.116775-1-yang.lee@linux.alibaba.com