hide provider when changing password

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

@@ -585,7 +585,7 @@ public class AuthenticatorActivity extends AccountAuthenticatorActivity
 
         /// step 2 - set properties of UI elements (text, visibility, enabled...)
         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
-        welcomeLink.setVisibility(isWelcomeLinkVisible ? View.VISIBLE : View.GONE);
+        welcomeLink.setVisibility(mAction == ACTION_CREATE && isWelcomeLinkVisible ? View.VISIBLE : View.GONE);
         welcomeLink.setText(getString(R.string.auth_register));
 
         TextView instructionsView = (TextView) findViewById(R.id.instructions_message);