userinit: kill userinit.d

We can't give exec permissions on /data, userinit.sh is sufficient for
most cases.

Change-Id: I924cecb2cd2ecf71bc15f77dccd2c28a19341b91

prebuilt/common/etc/init.d/90userinit

@@ -7,9 +7,3 @@ then
    /system/bin/sh /data/local/userinit.sh;
    setprop cm.userinit.active 1;
 fi;
-
-if [ -d /data/local/userinit.d ];
-then
-   busybox run-parts /data/local/userinit.d;
-   setprop cm.userinit.active 1;
-fi;