Update version to release 2.0.6 and remove some unused parameters

etc/config.xml

@@ -97,8 +97,6 @@
                 <delivery_days>5</delivery_days>
                 <allowspecific>0</allowspecific>
                 <sort_order>3</sort_order>
-                <place_order_url>adyen/process/redirect</place_order_url>
-                <order_place_redirect_url>adyen/process/redirect</order_place_redirect_url>
                 <payment_action>order</payment_action>
                 <can_initialize>1</can_initialize>
                 <is_gateway>1</is_gateway>
@@ -138,8 +136,6 @@
                 <title>Adyen POS</title>
                 <allowspecific>0</allowspecific>
                 <sort_order>5</sort_order>
-                <place_order_url>adyen/process/redirect</place_order_url>
-                <order_place_redirect_url>adyen/process/redirect</order_place_redirect_url>
                 <payment_action>order</payment_action>
                 <can_initialize>1</can_initialize>
                 <is_gateway>1</is_gateway>

etc/module.xml

@@ -24,7 +24,7 @@
 -->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
 
-    <module name="Adyen_Payment" setup_version="2.0.5">
+    <module name="Adyen_Payment" setup_version="2.0.6">
         <sequence>
             <module name="Magento_Sales"/>
             <module name="Magento_Quote"/>