Remove attempt to write sched_compat_yield

The sched_compat_yield option was eliminated in Linux 2.6.38 by commit
ac53db596cc0 ("sched: Use a buddy to implement yield_task_fair()") and
as a result, the following error is printed to the log during boot up.

init: write_file: Unable to open '/proc/sys/kernel/sched_compat_yield':
No such file or directory"

Bug: 30034121
Change-Id: Idbdb68de0cb3ab1f67d82a4d66af880bcfdfe261

rootdir/init.rc

@@ -112,7 +112,6 @@ on init
     write /proc/sys/kernel/sched_tunable_scaling 0
     write /proc/sys/kernel/sched_latency_ns 10000000
     write /proc/sys/kernel/sched_wakeup_granularity_ns 2000000
-    write /proc/sys/kernel/sched_compat_yield 1
     write /proc/sys/kernel/sched_child_runs_first 0
 
     write /proc/sys/kernel/randomize_va_space 2