Dealloc JNI implementation experiment

Summary:
@public

Remove ability to configure Yoga to run with/without JNI fast calls on dalvik / art.
This switches to always run with fast calls.

Reviewed By: astreet

Differential Revision: D13144652

fbshipit-source-id: 091aab0cd1290d46346323d3e26a11dd0bb17187

java/com/facebook/yoga/YogaConfig.java

@@ -8,6 +8,7 @@
 package com.facebook.yoga;
 
 import com.facebook.proguard.annotations.DoNotStrip;
+import com.facebook.soloader.SoLoader;
 
 @DoNotStrip
 public class YogaConfig {
@@ -15,7 +16,7 @@ public class YogaConfig {
   public static int SPACING_TYPE = 1;
 
   static {
-      YogaJNI.init();
+    SoLoader.loadLibrary("yoga");
   }
 
   long mNativePointer;

java/com/facebook/yoga/YogaJNI.java

@@ -1,32 +0,0 @@
-/*
- *  Copyright (c) Facebook, Inc. and its affiliates.
- *
- *  This source code is licensed under the MIT license found in the LICENSE
- *  file in the root directory of this source tree.
- *
- */
-package com.facebook.yoga;
-
-import com.facebook.soloader.SoLoader;
-
-public class YogaJNI {
-  private static boolean isInitialized = false;
-
-  // Known constants. 1-3 used in previous experiments. Do not reuse.
-  public static int JNI_FAST_CALLS = 4;
-
-  // set before loading any other Yoga code
-  public static boolean useFastCall = false;
-
-  private static native void jni_bindNativeMethods(boolean useFastCall);
-
-  static synchronized boolean init() {
-    if (!isInitialized) {
-      isInitialized = true;
-      SoLoader.loadLibrary("yoga");
-      jni_bindNativeMethods(useFastCall);
-      return true;
-    }
-    return false;
-  }
-}

java/com/facebook/yoga/YogaNode.java

@@ -8,6 +8,7 @@
 package com.facebook.yoga;
 
 import com.facebook.proguard.annotations.DoNotStrip;
+import com.facebook.soloader.SoLoader;
 import java.util.ArrayList;
 import java.util.List;
 import javax.annotation.Nullable;
@@ -16,7 +17,7 @@ import javax.annotation.Nullable;
 public class YogaNode implements Cloneable {
 
   static {
-      YogaJNI.init();
+    SoLoader.loadLibrary("yoga");
   }
 
   /**