usb: gadget: lpc32xx_udc: Remove NULL check of list_entry()

list_entry() will never return a NULL pointer, thus remove the
check.

Signed-off-by: Yuesong Li <liyuesong@vivo.com>
Reviewed-by: Vladimir Zapolskiy <vz@mleia.com>
Link: https://lore.kernel.org/r/20240821085245.25348-1-liyuesong@vivo.com


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