Undeprecate CronetEngine.Builder#enableLegacyMode

components/cronet/android/api/src/org/chromium/net/CronetEngine.java

Index: components/cronet/android/api/src/org/chromium/net/CronetEngine.java
diff --git a/components/cronet/android/api/src/org/chromium/net/CronetEngine.java b/components/cronet/android/api/src/org/chromium/net/CronetEngine.java
index a1e9b0493e810bd72125781d582f55534a8228d4..81dba05f59bed9974986a59eae9b6106d70f9c22 100644
--- a/components/cronet/android/api/src/org/chromium/net/CronetEngine.java
+++ b/components/cronet/android/api/src/org/chromium/net/CronetEngine.java
@@ -218,10 +218,7 @@ public abstract class CronetEngine {
          *              falls back to an implementation based on the system's
          *              {@link java.net.HttpURLConnection} implementation.
          * @return the builder to facilitate chaining.
-         * @deprecated Not supported by the new API.
-         * @hide
          */
-        @Deprecated
         public Builder enableLegacyMode(boolean value) {
             mLegacyModeEnabled = value;
             return this;