staging: rtl8723bs: core: rtw_ieee80211: Remove seemingly pointless copy

staging: rtl8723bs: core: rtw_ieee80211: Remove seemingly pointless copy

Fixes the following W=1 kernel build warning(s):

 drivers/staging/rtl8723bs/core/rtw_ieee80211.c: In function ‘rtw_ies_remove_ie’:
 drivers/staging/rtl8723bs/core/rtw_ieee80211.c:259:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-staging@lists.linux.dev
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210414181129.1628598-31-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>