Revert "Make encryption configurable"

This reverts commit bda6272446454886339841a62daaa1b66c07ad60.

The original fix seems to have led to boot failures in QA. Rather than
risk shipping, revert the change. Bug 18764230 reopened.

Requires change
    https://googleplex-android-review.git.corp.google.com/#/c/629764/

Bug: 19278390
Bug: 19199624

Change-Id: I8b6ab585666f2b0f585ffb2a5f61ac2e3462e06e
diff --git a/rootdir/init.rc b/rootdir/init.rc
index e90acee..cbcb842 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -572,7 +572,7 @@
     # encryption) or trigger_restart_min_framework (other encryption)
 
 # One shot invocation to encrypt unencrypted volumes
-service encrypt /system/bin/vdc --wait cryptfs maybeenabledefaultcrypto
+service encrypt /system/bin/vdc --wait cryptfs enablecrypto inplace default
     disabled
     oneshot
     # vold will set vold.decrypt to trigger_restart_framework (default