init.rc: remove commented-out code that set vold.post_fs_data_done

The "vold.post_fs_data_done" system property was only used by FDE, which
is no longer supported, and this code was commented out anyway.

Bug: 208476087
Change-Id: Ib9346d14368c77058a598e5c4f5f2ed72f5a5316
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 404d7ae..7ad1c3c 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -1008,12 +1008,6 @@
     # module, delete if not.
     exec - system system -- /system/bin/tzdatacheck /apex/com.android.tzdata/etc/tz /data/misc/zoneinfo
 
-    # If there is no post-fs-data action in the init.<device>.rc file, you
-    # must uncomment this line, otherwise encrypted filesystems
-    # won't work.
-    # Set indication (checked by vold) that we have finished this action
-    #setprop vold.post_fs_data_done 1
-
     # sys.memfd_use set to false by default, which keeps it disabled
     # until it is confirmed that apps and vendor processes don't make
     # IOCTLs on ashmem fds any more.