unified: Eliminate unimplemented unified kernel APIs
unified: Eliminate unimplemented unified kernel APIs

Gets rid of unified kernel APIs that will never be implemented.
(i.e. They were proposed, but are no longer considered desirable.)

Change-Id: I63ff0d2cdef355d21595f2a778ef5d5b18796149
Signed-off-by: Allan Stephens <1038bc33971d2c23c8e2eee8dd6938c077db52dc@windriver.com>

GiulianoFranchetto/zephyr,rsalveti/zephyr,rsalveti/zephyr,finikorg/zephyr,aceofall/zephyr-iotos,zephyriot/zephyr,fractalclone/zephyr-riscv,runchip/zephyr-cc3220,fractalclone/zephyr-riscv,kraj/zephyr,Vudentz/zephyr,mbolivar/zephyr,explora26/zephyr,GiulianoFranchetto/zephyr,fbsder/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,runchip/zephyr-cc3200,bboozzoo/zephyr,explora26/zephyr,holtmann/zephyr,erwango/zephyr,holtmann/zephyr,ldts/zephyr,nashif/zephyr,finikorg/zephyr,punitvara/zephyr,erwango/zephyr,bigdinotech/zephyr,zephyriot/zephyr,runchip/zephyr-cc3220,erwango/zephyr,aceofall/zephyr-iotos,finikorg/zephyr,fractalclone/zephyr-riscv,fbsder/zephyr,nashif/zephyr,fbsder/zephyr,zephyriot/zephyr,nashif/zephyr,bboozzoo/zephyr,GiulianoFranchetto/zephyr,aceofall/zephyr-iotos,rsalveti/zephyr,Vudentz/zephyr,runchip/zephyr-cc3220,ldts/zephyr,runchip/zephyr-cc3200,mbolivar/zephyr,kraj/zephyr,pklazy/zephyr,fractalclone/zephyr-riscv,tidyjiang8/zephyr-doc,bigdinotech/zephyr,runchip/zephyr-cc3200,holtmann/zephyr,mbolivar/zephyr,Vudentz/zephyr,bboozzoo/zephyr,fbsder/zephyr,fractalclone/zephyr-riscv,mbolivar/zephyr,runchip/zephyr-cc3200,pklazy/zephyr,galak/zephyr,explora26/zephyr,ldts/zephyr,galak/zephyr,GiulianoFranchetto/zephyr,runchip/zephyr-cc3220,punitvara/zephyr,tidyjiang8/zephyr-doc,erwango/zephyr,pklazy/zephyr,kraj/zephyr,holtmann/zephyr,Vudentz/zephyr,bboozzoo/zephyr,mbolivar/zephyr,punitvara/zephyr,galak/zephyr,pklazy/zephyr,aceofall/zephyr-iotos,tidyjiang8/zephyr-doc,finikorg/zephyr,galak/zephyr,explora26/zephyr,rsalveti/zephyr,pklazy/zephyr,GiulianoFranchetto/zephyr,zephyrproject-rtos/zephyr,sharronliu/zephyr,sharronliu/zephyr,zephyrproject-rtos/zephyr,holtmann/zephyr,bigdinotech/zephyr,zephyrproject-rtos/zephyr,aceofall/zephyr-iotos,tidyjiang8/zephyr-doc,galak/zephyr,finikorg/zephyr,explora26/zephyr,bigdinotech/zephyr,runchip/zephyr-cc3200,kraj/zephyr,zephyriot/zephyr,Vudentz/zephyr,nashif/zephyr,zephyrproject-rtos/zephyr,ldts/zephyr,sharronliu/zephyr,rsalveti/zephyr,tidyjiang8/zephyr-doc,ldts/zephyr,zephyriot/zephyr,erwango/zephyr,punitvara/zephyr,punitvara/zephyr,bboozzoo/zephyr,fbsder/zephyr,bigdinotech/zephyr,Vudentz/zephyr,kraj/zephyr,sharronliu/zephyr,sharronliu/zephyr,runchip/zephyr-cc3220