Remove permission for external storage

The book doesn't resides in the external storage anymore.

Author: devgrapher

OCEBook/app/src/main/AndroidManifest.xml

@@ -7,7 +7,6 @@
         android:targetSdkVersion="25" />
 
     <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WRITE_SETTINGS" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 

OCEBook/app/src/main/java/com/devgrapher/ocebook/MainActivity.java

@@ -73,8 +73,6 @@ protected void onCreate(Bundle savedInstanceState) {
 
         mPageInfoTextView = (TextView) findViewById(R.id.tv_page_info);
 
-        if (!checkPermissions()) return;
-
         if (!PrepareBook()) return;
 
         FragmentManager fragmentManager = getFragmentManager();
@@ -124,19 +122,6 @@ private boolean PrepareBook() {
         return true;
     }
 
-    private boolean checkPermissions() {
-        int permissionCheck = ContextCompat.checkSelfPermission(this,
-                Manifest.permission.READ_EXTERNAL_STORAGE);
-
-        if (permissionCheck == PackageManager.PERMISSION_DENIED) {
-            Toast.makeText(getApplicationContext(),
-                    getString(R.string.error_permission),
-                    Toast.LENGTH_LONG).show();
-            return false;
-        }
-        return true;
-    }
-
     @Override
     protected void onDestroy() {
         super.onDestroy();