staging: rtl8192e: Remove unused variable intb in _rtl92e_irq()

Remove unused variable intb in _rtl92e_irq().

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/df6efb730ba4119f00b5bcc0d760c9b1fd245235.1690615475.git.philipp.g.hortmann@gmail.com


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