staging: rtl8192e: Remove case customer_id = RT_CID_DEFAULT, ..

customer_id is initialize to zero. Changing customer_id to RT_CID_DEFAULT
will not change customer_id as it is already zero. default and
EEPROM_CID_WHQL contain only a break. Remove useless code lines to
increase readability.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/58df9db5da84991206266e739b2a12c893d1be8e.1680427945.git.philipp.g.hortmann@gmail.com


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