Revert "Reattach OomAdjuster rewrite flag"

This reverts commit 3663a16013870a52f1037cd9df4eded2e14325bb.

Reason for revert: DroidMonitor: Potential culprit for b/318408200 - verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.

Change-Id: Id6fcf224e2b68b3da65808299da6afeeaac77b54
diff --git a/services/core/java/com/android/server/am/ActivityManagerConstants.java b/services/core/java/com/android/server/am/ActivityManagerConstants.java
index 3ce91c8..1d69905 100644
--- a/services/core/java/com/android/server/am/ActivityManagerConstants.java
+++ b/services/core/java/com/android/server/am/ActivityManagerConstants.java
@@ -225,7 +225,7 @@
     /**
      * The default value to {@link #KEY_ENABLE_NEW_OOMADJ}.
      */
-    private static final boolean DEFAULT_ENABLE_NEW_OOM_ADJ = Flags.oomadjusterCorrectnessRewrite();
+    private static final boolean DEFAULT_ENABLE_NEW_OOM_ADJ = false;
 
     /**
      * Same as {@link TEMPORARY_ALLOW_LIST_TYPE_FOREGROUND_SERVICE_NOT_ALLOWED}