staging: r8188eu: remove rtl8188eu_init_xmit_priv

rtl8188eu_init_xmit_priv's only jobs is to initialise the xmit tasklet.

Remove rtl8188eu_init_xmit_priv and initialise the xmit tasklet in
_rtw_init_xmit_priv. Yet again, this makes the code a tiny bit smaller.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20221230180646.91008-8-martin@kaiser.cx


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>