Revert "Update proguard"

This reverts commit dbd48da49aea77397b0418130cb798fa46851a84.

Reason for revert: was only hiding aware settings for beta 1
Bug: 123532083
Change-Id: I7d07f9ec62a3bd6f81838da1e2639102d501e1c4
diff --git a/proguard.flags b/proguard.flags
index d509dba..b66a786 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -9,7 +9,7 @@
 -keep public class com.android.settings.** extends androidx.fragment.app.Fragment
 
 # Keep all preference controllers needed by slice and DashboardFragment.
--keep class !com.google.android.settings.aware.*, * extends com.android.settings.core.BasePreferenceController {
+-keep class * extends com.android.settings.core.BasePreferenceController {
     *;
 }