Remove Settings.Global.TCP_DEFAULT_INIT_RWND on CS

TCP_DEFAULT_INIT_RWND setting has never been set before, CS
always read the tcp receive window size from
net.tcp.default_init_rwnd then set to net.tcp_def_init_rwnd.
Thus, remove the unnecessary setting from CS, and the property
doesn't need to set either. Because aosp/1639922 migrate the
properties, the default value has been set to kernel already.

Bug: 182538166
Test: atest FrameworksNetTests
Change-Id: I13e175ab4dea72446af7df4a25e307e5934fa813

2 files changed, 0 insertions, 14 deletions

diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 92d9b08ed29d..614b7ea61263 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -2603,13 +2603,6 @@ public class ConnectivityService extends IConnectivityManager.Stub
         } catch (RemoteException | ServiceSpecificException e) {
             loge("Can't set TCP buffer sizes:" + e);
         }
-
-        final Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(),
-                Settings.Global.TCP_DEFAULT_INIT_RWND,
-                    mSystemProperties.getInt("net.tcp.default_init_rwnd", 0));
-        if (rwndValue != 0) {
-            mSystemProperties.setTcpInitRwnd(rwndValue);
-        }
     }
 
     @Override
diff --git a/services/core/java/com/android/server/connectivity/MockableSystemProperties.java b/services/core/java/com/android/server/connectivity/MockableSystemProperties.java
index ef767341d609..a25b89ac039a 100644
--- a/services/core/java/com/android/server/connectivity/MockableSystemProperties.java
+++ b/services/core/java/com/android/server/connectivity/MockableSystemProperties.java
@@ -17,7 +17,6 @@
 package com.android.server.connectivity;
 
 import android.os.SystemProperties;
-import android.sysprop.NetworkProperties;
 
 public class MockableSystemProperties {
 
@@ -32,10 +31,4 @@ public class MockableSystemProperties {
     public boolean getBoolean(String key, boolean def) {
         return SystemProperties.getBoolean(key, def);
     }
-    /**
-     * Set net.tcp_def_init_rwnd to the tcp initial receive window size.
-     */
-    public void setTcpInitRwnd(int value) {
-        NetworkProperties.tcp_init_rwnd(value);
-    }
 }