drivers: i2c_nrfx_twim: Remove extra path for zero-length transfers
drivers: i2c_nrfx_twim: Remove extra path for zero-length transfers

nrfx 2.5.0 release includes the patch in the nrfx_twim driver that
fixes the driver behavior for zero-length transfers. No need to keep
the same fix in the shim layer.
This effectively reverts cb86a2b306517847420c4694f42881571bc507c4.

Signed-off-by: Andrzej Głąbek <6788b8d556a8a447102338fc996c42180ecff44e@nordicsemi.no>

finikorg/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,galak/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,galak/zephyr,finikorg/zephyr,finikorg/zephyr