Make $_REQUEST processing independent of sub-calls

- Move HTTPInputData::process() into App::runFrontend()
- Pass $_REQUEST (including processed Input) to every Module method
- Delete $_POST parameters at Module post() calls because of $_REQUEST

src/Module/OAuth/Acknowledge.php

@@ -30,7 +30,7 @@ use Friendica\Module\BaseApi;
  */
 class Acknowledge extends BaseApi
 {
-	protected function post(array $request = [], array $post = [])
+	protected function post(array $request = [])
 	{
 		DI::session()->set('oauth_acknowledge', true);
 		DI::app()->redirect(DI::session()->get('return_path'));

src/Module/OAuth/Revoke.php

@@ -32,7 +32,7 @@ use Friendica\Module\BaseApi;
  */
 class Revoke extends BaseApi
 {
-	protected function post(array $request = [], array $post = [])
+	protected function post(array $request = [])
 	{
 		$request = $this->getRequest([
 			'client_id'     => '', // Client ID, obtained during app registration

src/Module/OAuth/Token.php

@@ -34,7 +34,7 @@ use Friendica\Security\OAuth;
  */
 class Token extends BaseApi
 {
-	protected function post(array $request = [], array $post = [])
+	protected function post(array $request = [])
 	{
 		$request = $this->getRequest([
 			'client_id'     => '', // Client ID, obtained during app registration