Revert "Uplifting PR 299 to work with the latest Foundation"

This reverts commit 5fdd36b.

Author: phausler

CoreFoundation/Base.subproj/ForSwiftFoundationOnly.h

@@ -23,7 +23,6 @@
 #include <CoreFoundation/CFXMLInterface.h>
 #include <CoreFoundation/CFRegularExpression.h>
 #include <CoreFoundation/CFLogUtilities.h>
-#include <CoreFoundation/CFURLSessionInterface.h>
 #include <CoreFoundation/ForFoundationOnly.h>
 #include <fts.h>
 #include <pthread.h>

CoreFoundation/URL.subproj/CFURLSessionInterface.c

@@ -338,11 +338,11 @@ extension NSData {
         if url.isFileURL {
             try self.init(contentsOfFile: url.path, options: readOptionsMask)
         } else {
-            let session = URLSession(configuration: URLSessionConfiguration.default)
+            let session = URLSession(configuration: URLSessionConfiguration.defaultSessionConfiguration())
             let cond = NSCondition()
             var resError: NSError?
             var resData: Data?
-            let task = session.dataTask(with: url, completionHandler: { (data: Data?, response: URLResponse?, error: NSError?) -> Void in
+            let task = session.dataTaskWithURL(url, completionHandler: { (data: Data?, response: URLResponse?, error: NSError?) -> Void in
                 resData = data
                 resError = error
                 cond.broadcast()