kernel: Remove unnecessary old code
kernel: Remove unnecessary old code

_sem_give_non_preemptible is non preemptible and no need to move thread
to ready queue for any real use case. Remove old code. This is also
not public API

Signed-off-by: Punit Vara <2ba5e82aa6fb4e68460f49bedefe3af5717cea9b@intel.com>

zephyriot/zephyr,galak/zephyr,ldts/zephyr,galak/zephyr,explora26/zephyr,nashif/zephyr,explora26/zephyr,Vudentz/zephyr,mbolivar/zephyr,GiulianoFranchetto/zephyr,Vudentz/zephyr,Vudentz/zephyr,ldts/zephyr,zephyriot/zephyr,finikorg/zephyr,Vudentz/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,punitvara/zephyr,GiulianoFranchetto/zephyr,finikorg/zephyr,galak/zephyr,explora26/zephyr,mbolivar/zephyr,finikorg/zephyr,Vudentz/zephyr,GiulianoFranchetto/zephyr,mbolivar/zephyr,explora26/zephyr,kraj/zephyr,punitvara/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,zephyriot/zephyr,finikorg/zephyr,Vudentz/zephyr,nashif/zephyr,punitvara/zephyr,mbolivar/zephyr,mbolivar/zephyr,punitvara/zephyr,GiulianoFranchetto/zephyr,zephyrproject-rtos/zephyr,kraj/zephyr,ldts/zephyr,kraj/zephyr,kraj/zephyr,ldts/zephyr,nashif/zephyr,explora26/zephyr,GiulianoFranchetto/zephyr,zephyriot/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,ldts/zephyr,nashif/zephyr,kraj/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,zephyriot/zephyr