Change fix to CA2022

Author: claudiamurialdo

dotnet/src/dotnetframework/GxClasses/Domain/GxFtp.cs

@@ -848,12 +848,8 @@ private bool IsCompleteResponse(Stream responseStream)
 				int StatusCode=-1;									
 				Byte[] ByteArray = new Byte[responselength];			
 				String statuscodestr;
-#if NETCORE
-				responseStream.ReadExactly(ByteArray,0,responselength);
-#else
-				responseStream.Read(ByteArray, 0, responselength);
-#endif
-				statuscodestr = Encoding.ASCII.GetString(ByteArray,0,responselength);			
+				int bytesRead = responseStream.Read(ByteArray, 0, responselength);
+				statuscodestr = Encoding.ASCII.GetString(ByteArray,0, bytesRead);			
 				if (responselength==5 && ByteArray[responselength-1] == '\n')	
 				{