kernel: Greenlight the new prctl command

kernel/Makefile

@@ -123,17 +123,6 @@ else
 $(info -- KPM is disabled)
 endif
 
-ifeq ($(CONFIG_KSU_MANUAL_SU), y)
-KSU_PW_POOL := abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
-KSU_PW_LEN  := $(shell awk 'BEGIN{srand(); print int(rand()*9)+8}')
-KSU_SU_PASSWORD := $(shell \
-    tr -dc '$(KSU_PW_POOL)' </dev/urandom | head -c $(KSU_PW_LEN))
-
-ccflags-y += -DKSU_SU_PASSWORD=\"$(KSU_SU_PASSWORD)\"
-
-$(info -- KSU manual-su password : $(KSU_SU_PASSWORD))
-endif
-
 # SELinux drivers check
 ifeq ($(shell grep -q "current_sid(void)" $(srctree)/security/selinux/include/objsec.h; echo $$?),0)
 ccflags-y += -DKSU_COMPAT_HAS_CURRENT_SID