Revert "Using NS_ENUM in place of typedef enum"

This reverts commit ae1d419cd4.

AFNetworking/AFHTTPClient.h

@@ -72,12 +72,12 @@
  */
 
 #ifdef _SYSTEMCONFIGURATION_H
-typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) {
+typedef enum {
     AFNetworkReachabilityStatusUnknown          = -1,
     AFNetworkReachabilityStatusNotReachable     = 0,
     AFNetworkReachabilityStatusReachableViaWWAN = 1,
     AFNetworkReachabilityStatusReachableViaWiFi = 2,
-};
+} AFNetworkReachabilityStatus;
 #else
 #warning "SystemConfiguration framework not found in project, or not included in precompiled header. Network reachability functionality will not be available."
 #endif
@@ -86,11 +86,11 @@ typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) {
 #warning "CoreServices framework not found in project, or not included in precompiled header. Automatic MIME type detection when uploading files in multipart requests will not be available."
 #endif
 
-typedef NS_ENUM(NSInteger, AFHTTPClientParameterEncoding) {
+typedef enum {
     AFFormURLParameterEncoding,
     AFJSONParameterEncoding,
     AFPropertyListParameterEncoding,
-};
+} AFHTTPClientParameterEncoding;
 
 @class AFHTTPRequestOperation;
 @protocol AFMultipartFormData;

AFNetworking/AFHTTPClient.m

@@ -1036,12 +1036,12 @@ NSTimeInterval const kAFUploadStream3GSuggestedDelay = 0.2;
 
 #pragma mark -
 
-typedef NS_ENUM(NSInteger, AFHTTPBodyPartReadPhase) {
+typedef enum {
     AFEncapsulationBoundaryPhase = 1,
     AFHeaderPhase                = 2,
     AFBodyPhase                  = 3,
     AFFinalBoundaryPhase         = 4,
-};
+} AFHTTPBodyPartReadPhase;
 
 @interface AFHTTPBodyPart () {
     AFHTTPBodyPartReadPhase _phase;

AFNetworking/AFURLConnectionOperation.m

@@ -30,12 +30,12 @@
 // You can turn on ARC for only AFNetworking files by adding -fobjc-arc to the build phase for each of its files.
 #endif
 
-typedef NS_ENUM(NSInteger, _AFOperationState) {
+typedef enum {
     AFOperationPausedState      = -1,
     AFOperationReadyState       = 1,
     AFOperationExecutingState   = 2,
     AFOperationFinishedState    = 3,
-};
+} _AFOperationState;
 
 typedef signed short AFOperationState;