fix a few spotify key bugs and remove BTDM

components/spotify/cspot/src/PlainConnection.cpp

@@ -179,6 +179,7 @@ size_t PlainConnection::writeBlock(const std::vector<uint8_t> &data)
                 break;
             default:
                 if (retries++ > 4) throw std::runtime_error("Error in write");
+				goto WRITE;
             }
         }
         idx += n;