reboot: Remove sync() is up to user to do that

Also, this code will be refactored soon to be a part of the finit
binary, like telinit, and then we will be called after unmount to
do a forced halt/reboot/poweroff.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

reboot.c

@@ -138,8 +138,6 @@ int main(int argc, char *argv[])
 	translate();
 
 	if (force) {
-		sync();
-
 		switch (cmd) {
 		case CMD_REBOOT:
 			c = reboot(RB_AUTOBOOT);