staging: rtl8192e: Remove unused variable H2CTxCmdSeq

H2CTxCmdSeq is never used. Remove resulting dead code.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/3e6da78dff15cb5e5e26450d8e3f23e2e10ce61f.1674071236.git.philipp.g.hortmann@gmail.com


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