remove async API

Author: ariefkahfi

composer.json

@@ -3,7 +3,6 @@
     "description": "Simple HTTP client built on curl",
     "type": "library",
     "require": {
-        "guzzlehttp/promises": "^1.3"
     },
     "autoload": {
         "psr-4": {

composer.lock

@@ -40,7 +40,7 @@ echo ("\n" . $raw . "\n");
 More example below...
 
 
-### Example of synchronous request
+### More Examples...
 ```
 
 // ex .1
@@ -76,60 +76,4 @@ $postForm->send(array(
 $raw = $postForm->rawResponse();
 echo ("\n" . $raw . "\n");
 
-```
-
-### Example of asynchronous request (based on Guzzle promises)
-
-```
-// GET Async http client example
-$atticaPromise = new AtticaPromise();
-$wrongUrl = $atticaPromise->asyncGET("blasdaosd");
-
-var_dump("before wrongUrl...");
-$wrongUrl->then(function($v) {
-    var_dump($v);
-});
-var_dump("after wrongUrl...");
-
-
-try {
-    $wrongUrl->wait();
-    var_dump("promise resolved");
-}catch(Exception $ex){
-    var_dump($ex->getMessage());
-}
-
-// POST Async http client example (application/json)
-// chaining promises
-$m = $atticaPromise->asyncSendPOST("https://reqres.in/api/users",array(
-    'name'=>'hello',
-    'job'=>'world'
-),"application/json");
-
-$m->then(function($v) use ($atticaPromise){
-    echo $v . "\n";
-    return $atticaPromise->asyncSendPOST("http://httpbin.org/post",array(
-        'a'=>'aaa','b'=>'bbb'
-    ),'application/x-www-form-urlencoded')->wait();
-})->then(function($v) {
-    echo $v . "\n";
-});
-
-$m->wait();
-
-// POST Async with asyncRequest example
-$data = http_build_query(array(
-    'name'=>'asd',
-    'job'=>'dsa'
-));
-$headers = array(
-    'Content-type: application/x-www-form-urlencoded'
-);
-$custom = $atticaPromise->asyncRequest("http://httpbin.org/post",$headers , CURLOPT_POST , $data);
-$custom->then(function($v){
-    echo $v;
-});
-
-$custom->wait();
-
 ```