Remove the libraries loading mechanism

Because we have proved that we don't need that (we take care of that in gradle configuration)...so...there is no need to keep the loading mechanism to only load a single library `libmain.so` which is the only one we need to load...all others will be loaded automatically by the android os library system.

Note: This changes affects bootstraps: sdl2, webview and service_only

Author: opacam

pythonforandroid/bootstraps/common/build/src/main/java/org/kivy/android/PythonService.java

@@ -14,8 +14,6 @@
 import android.os.Process;
 import java.io.File;
 
-import org.kivy.android.PythonUtil;
-
 import org.renpy.android.Hardware;
 
 
@@ -142,9 +140,7 @@ public void onTaskRemoved(Intent rootIntent) {
 
     @Override
     public void run(){
-        String app_root =  getFilesDir().getAbsolutePath() + "/app";
-        File app_root_file = new File(app_root);
-        PythonUtil.loadLibraries(app_root_file);
+        System.loadLibrary("main");
         this.mService = this;
         nativeStart(
             androidPrivate, androidArgument,

pythonforandroid/bootstraps/common/build/src/main/java/org/kivy/android/PythonUtil.java

@@ -43,7 +43,6 @@
 import org.libsdl.app.SDL;
 import org.libsdl.app.SDLActivity;
 
-import org.kivy.android.PythonUtil;
 import org.kivy.android.launcher.Project;
 
 import org.renpy.android.ResourceManager;
@@ -80,12 +79,6 @@ protected void onCreate(Bundle savedInstanceState) {
         new UnpackFilesTask().execute(getAppRoot());
     }
 
-    public void loadLibraries() {
-        String app_root = new String(getAppRoot());
-        File app_root_file = new File(app_root);
-        PythonUtil.loadLibraries(app_root_file);
-    }
-
     public void recursiveDelete(File f) {
         if (f.isDirectory()) {
             for (File r : f.listFiles()) {