#4253 remove the context-param for Server Push to comply with JSF 2.3 spec 2.2.6

Author: Ed Burns

jsf-ri/src/main/java/com/sun/faces/application/ApplicationAssociate.java

@@ -285,10 +285,6 @@ public ApplicationAssociate(ApplicationImpl appImpl) {
     private boolean checkForPushBuilder() {
         boolean result = false;
 
-        if (!webConfig.isOptionEnabled(BooleanWebContextInitParameter.EnablePushResources)) {
-            return result;
-        }
-        
         Class clazz = HttpServletRequest.class;
         try {
             result = null != clazz.getMethod("newPushBuilder", (Class[]) null);

jsf-ri/src/main/java/com/sun/faces/config/WebConfiguration.java

@@ -1242,10 +1242,6 @@ public enum BooleanWebContextInitParameter {
               "com.sun.faces.enableCoreTagLibValidator",
               false
         ),
-        EnablePushResources(
-              "com.sun.faces.enablePushResources",
-              false
-        ),
         PreferXHTMLContentType(
               "com.sun.faces.preferXHTML",
               false