From 56ab231a8fa86f4aa5107d9248d2cf6285469edb Mon Sep 17 00:00:00 2001
From: Inseob Kim <inseob@google.com>
Date: Fri, 13 Nov 2020 18:55:56 +0900
Subject: [PATCH] Remove obsolete property ro.kernel.android.tracing

Bug: 173179120
Test: build
Change-Id: If46e65dac70ab4f1835048dbbcc8b571ce598224
---
 core/java/com/android/internal/os/RuntimeInit.java | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/core/java/com/android/internal/os/RuntimeInit.java b/core/java/com/android/internal/os/RuntimeInit.java
index 60f1b4438f54b..8d1f16b4b259a 100644
--- a/core/java/com/android/internal/os/RuntimeInit.java
+++ b/core/java/com/android/internal/os/RuntimeInit.java
@@ -24,7 +24,6 @@ import android.compat.annotation.UnsupportedAppUsage;
 import android.content.type.DefaultMimeMapFactory;
 import android.os.Build;
 import android.os.DeadObjectException;
-import android.os.Debug;
 import android.os.IBinder;
 import android.os.Process;
 import android.os.SystemProperties;
@@ -257,18 +256,6 @@ public class RuntimeInit {
          */
         NetworkManagementSocketTagger.install();
 
-        /*
-         * If we're running in an emulator launched with "-trace", put the
-         * VM into emulator trace profiling mode so that the user can hit
-         * F9/F10 at any time to capture traces.  This has performance
-         * consequences, so it's not something you want to do always.
-         */
-        String trace = SystemProperties.get("ro.kernel.android.tracing");
-        if (trace.equals("1")) {
-            Slog.i(TAG, "NOTE: emulator trace profiling enabled");
-            Debug.enableEmulatorTraceOutput();
-        }
-
         initialized = true;
     }