remove invalid IP rule

Limelight/Network/DiscoveryManager.h

@@ -27,6 +27,5 @@
 - (void) pauseDiscoveryForHost:(TemporaryHost *)host;
 - (void) resumeDiscoveryForHost:(TemporaryHost *)host;
 - (void) discoverHost:(NSString*)hostAddress withCallback:(void (^)(TemporaryHost*, NSString*))callback;
-+ (void) setBackdoorHostAddress: (NSString*)address;
 
 @end

Limelight/Network/DiscoveryManager.m

@@ -21,8 +21,6 @@
 #include <sys/socket.h>
 #include <netdb.h>
 
-static NSString* backdoorHostAddress;
-
 @implementation DiscoveryManager {
     NSMutableArray* _hostQueue;
     NSMutableSet* _pausedHosts;
@@ -117,11 +115,6 @@ static NSString* backdoorHostAddress;
     //BOOL ret = NO;
     freeaddrinfo(result);
     
-    NSLog(@"backDoorHostAddress: %@", backdoorHostAddress);
-    if(ret){
-        if([address isEqualToString:backdoorHostAddress]) ret = NO;
-    }
-    backdoorHostAddress = nil;
     NSLog(@"IP Check, is prohibited: %d", ret);
 
     return NO;
@@ -130,10 +123,6 @@ static NSString* backdoorHostAddress;
 //#endif
 }
 
-+ (void)setBackdoorHostAddress: (NSString* )address{
-    backdoorHostAddress = address;
-}
-
 - (ServerInfoResponse*) getServerInfoResponseForAddress:(NSString*)address {
     HttpManager* hMan = [[HttpManager alloc] initWithAddress:address httpsPort:0 serverCert:nil];
     ServerInfoResponse* serverInfoResponse = [[ServerInfoResponse alloc] init];