Remove fingerprint authentication

src/main/java/com/owncloud/android/authentication/PassCodeManager.java

@@ -95,14 +95,6 @@ public class PassCodeManager {
             activity.startActivityForResult(i, PASSCODE_ACTIVITY);
         }
 
-        if (!sExemptOfPasscodeActivites.contains(activity.getClass()) && Build.VERSION.SDK_INT >=
-                Build.VERSION_CODES.M && deviceCredentialsShouldBeRequested() &&
-                !DeviceCredentialUtils.tryEncrypt()) {
-            Intent i = new Intent(MainApp.getAppContext(), RequestCredentialsActivity.class);
-            i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
-            activity.startActivity(i);
-        }
-
         visibleActivitiesCounter++;    // keep it AFTER passCodeShouldBeRequested was checked
     }
 

src/main/java/com/owncloud/android/ui/activity/Preferences.java

@@ -377,6 +377,7 @@ public class Preferences extends PreferenceActivity
         if (pFeedback != null) {
             if (feedbackEnabled) {
                 pFeedback.setOnPreferenceClickListener(new OnPreferenceClickListener() {
+
                     @Override
                     public boolean onPreferenceClick(Preference preference) {
                         String feedbackMail = getString(R.string.mail_feedback);