staging: rtl8192e: Remove empty function rtllib_rx_Mesh()

Function rtllib_rx_Mesh() returns always 0. Variable ret is already
initialized with 0. Remove dead code.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/7c1aee16a95cd52149faf80c83b6fa19d6499913.1690615475.git.philipp.g.hortmann@gmail.com


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