Revert of Expose effective connection type to Cronet

components/cronet/android/java/src/org/chromium/net/impl/CronetUrlRequestContext.java

Index: components/cronet/android/java/src/org/chromium/net/impl/CronetUrlRequestContext.java
diff --git a/components/cronet/android/java/src/org/chromium/net/impl/CronetUrlRequestContext.java b/components/cronet/android/java/src/org/chromium/net/impl/CronetUrlRequestContext.java
index 57daa09bd363ac5ea0541dddb86aed498f8ab1c3..47d4345be6badb8147a47238315ce1610aed2871 100644
--- a/components/cronet/android/java/src/org/chromium/net/impl/CronetUrlRequestContext.java
+++ b/components/cronet/android/java/src/org/chromium/net/impl/CronetUrlRequestContext.java
@@ -20,7 +20,6 @@
 import org.chromium.base.annotations.UsedByReflection;
 import org.chromium.net.BidirectionalStream;
 import org.chromium.net.CronetEngine;
-import org.chromium.net.EffectiveConnectionType;
 import org.chromium.net.NetworkQualityRttListener;
 import org.chromium.net.NetworkQualityThroughputListener;
 import org.chromium.net.RequestFinishedInfo;
@@ -77,14 +76,6 @@
      * on any thread.
      */
     private final Object mFinishedListenerLock = new Object();
-
-    /**
-     * Current effective connection type as computed by the network quality
-     * estimator.
-     */
-    @GuardedBy("mNetworkQualityLock")
-    private int mEffectiveConnectionType =
-            EffectiveConnectionType.EFFECTIVE_CONNECTION_TYPE_UNKNOWN;
 
     @GuardedBy("mNetworkQualityLock")
     private final ObserverList<NetworkQualityRttListener> mRttListenerList =
@@ -269,17 +260,6 @@
         return nativeGetHistogramDeltas();
     }
 
-    @Override
-    public int getEffectiveConnectionType() {
-        if (!mNetworkQualityEstimatorEnabled) {
-            throw new IllegalStateException("Network quality estimator must be enabled");
-        }
-        synchronized (mNetworkQualityLock) {
-            checkHaveAdapter();
-            return mEffectiveConnectionType;
-        }
-    }
-
     @VisibleForTesting
     @Override
     public void configureNetworkQualityEstimatorForTesting(
@@ -453,17 +433,6 @@
         }
         Thread.currentThread().setName("ChromiumNet");
         Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
-    }
-
-    @SuppressWarnings("unused")
-    @CalledByNative
-    private void onEffectiveConnectionTypeChanged(int effectiveConnectionType) {
-        synchronized (mNetworkQualityLock) {
-            // Convert the enum returned by the network quality estimator to an enum of type
-            // EffectiveConnectionType.
-            mEffectiveConnectionType =
-                    EffectiveConnectionType.getEffectiveConnectionType(effectiveConnectionType);
-        }
     }
 
     @SuppressWarnings("unused")