feature #209 Removed hard timeout setting (Nek-)

This PR was merged into the 2.0-dev branch.

Discussion
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Removed hard timeout setting

I didn't add any test because i'm not sure "being able to set a timeout in guzzle" is a feature of Goutte :-) .
Feel free to tell me if i should add one.

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #177
| License       | MIT

Commits
-------

4453d60 Removed hard timeout setting

Goutte/Client.php

@@ -105,7 +105,6 @@ protected function doRequest($request)
             'body' => $body,
             'cookies' => $this->getCookieJar()->allRawValues($request->getUri()),
             'allow_redirects' => false,
-            'timeout' => 30,
         );
 
         if (!empty($headers)) {