Removed conversion from xml to array

Abstracted this functionality to another package since it is outside
the scope of the package's goal.

README.md

@@ -48,16 +48,6 @@ $xml = $collection->toSoapXml('Request', 'xmlBody', 'https://yourwebserver/servi
 
 **Please note:** the SoapFactory class will ping the ``$fullUrl`` to see if it is valid as it builds the SOAP xml. It will not trigger an api interaction, but you will experience an exception if your url is invalid.
 
-### Xml to collection
-
-Convert valid xml into an array before wrapping it in a collection:
-
-```php
-$xml = '<?xml version="1.0"?><root><carrier>fedex</carrier><id>123</id><tracking_number>9205590164917312751089</tracking_number></root>';
-
-$collection = collect(xml_to_array($xml));
-```
-
 ### Array to xml
 
 Convert an array into xml without using a collection:
@@ -80,12 +70,6 @@ $xml = array_to_xml($array);
 
 The ``$root`` argument allows you to customize the root xml element. Default is ``<root>``.
 
-**Helper**
-
-``xml_to_array($xml, $outputRoot = false)``
-
-The ``$outputRoot`` determines whether or not the php array will have a ``@root`` key. Default is ``false``.
-
 **Collection method**
 
 ``->toXml($root)``

src/helpers.php

@@ -13,17 +13,3 @@ function array_to_xml($array, $root = '')
         return \Spatie\ArrayToXml\ArrayToXml::convert($array, $root);
     }
 }
-
-if (!function_exists('xml_to_array')) {
-    /**
-     * Convert valid XML to an array.
-     *
-     * @param string $xml
-     * @param bool $outputRoot
-     * @return array
-     */
-    function xml_to_array($xml, $outputRoot = false)
-    {
-    	return \Mtownsend\CollectionXml\XmlToArray::convert($xml, $outputRoot);
-    }
-}

tests/CollectionXmlTest.php

@@ -64,10 +64,4 @@ public function array_can_convert_to_xml()
         $xml = $this->removeNewLines(array_to_xml($array));
         $this->assertEquals($xml, $this->testXml);
     }
-
-    /** @test */
-    public function xml_can_convert_to_array()
-    {
-        $this->assertEquals(xml_to_array($this->testXml), $this->testCollection->toArray());
-    }
 }