message: Remove HTTP2 rawSend.
diff: @@ -53,10 +53,6 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_http2_client_coro_write, 0, 0, 2)
  ZEND_ARG_INFO(0, end_stream)
  ZEND_END_ARG_INFO()
  -ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_http2_client_coro_rawSend, 0, 0, 1)
  - ZEND_ARG_INFO(0, data)
  -ZEND_END_ARG_INFO()
  -
  ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_http2_client_coro_recv, 0, 0, 0)
  ZEND_ARG_INFO(0, timeout)
  ZEND_END_ARG_INFO()
  @@ -78,7 +74,6 @@ static PHP_METHOD(swoole_http2_client_coro, set);
  static PHP_METHOD(swoole_http2_client_coro, connect);
  static PHP_METHOD(swoole_http2_client_coro, send);
  static PHP_METHOD(swoole_http2_client_coro, write);
  -static PHP_METHOD(swoole_http2_client_coro, rawSend);
  static PHP_METHOD(swoole_http2_client_coro, recv);
  static PHP_METHOD(swoole_http2_client_coro, goaway);
  static PHP_METHOD(swoole_http2_client_coro, close);
  @@ -99,7 +94,6 @@ static const zend_function_entry swoole_http2_client_methods[] =
  PHP_ME(swoole_http2_client_coro, connect, arginfo_swoole_void, ZEND_ACC_PUBLIC)
  PHP_ME(swoole_http2_client_coro, send, arginfo_swoole_http2_client_coro_send, ZEND_ACC_PUBLIC)
  PHP_ME(swoole_http2_client_coro, write, arginfo_swoole_http2_client_coro_write, ZEND_ACC_PUBLIC)
  - PHP_ME(swoole_http2_client_coro, rawSend, arginfo_swoole_http2_client_coro_rawSend, ZEND_ACC_PUBLIC)
  PHP_ME(swoole_http2_client_coro, recv, arginfo_swoole_http2_client_coro_recv, ZEND_ACC_PUBLIC)
  PHP_ME(swoole_http2_client_coro, goaway, arginfo_swoole_http2_client_coro_goaway, ZEND_ACC_PUBLIC)
  PHP_ME(swoole_http2_client_coro, close, arginfo_swoole_void, ZEND_ACC_PUBLIC)
  @@ -1092,27 +1086,6 @@ static PHP_METHOD(swoole_http2_client_coro, write)
  SW_CHECK_RETURN(http2_client_send_data(hcc, stream_id, data, end TSRMLS_CC));
  }
  -static PHP_METHOD(swoole_http2_client_coro, rawSend)
  -{
  - http2_client_property *hcc = swoole_get_property(getThis(), HTTP2_CLIENT_CORO_PROPERTY);
  - swClient *cli = hcc->client;
  - swString data;
  -
  - if (!cli || !cli->socket || cli->socket->closed)
  - {
  - swoole_php_error(E_WARNING, "The connection is closed.");
  - RETURN_FALSE;
  - }
  -
  - bzero(&data, sizeof(data));
  - if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &data.str, &data.length) == FAILURE)
  - {
  - return;
  - }
  -
  - SW_CHECK_RETURN(cli->send(cli, data.str, data.length, 0));
  -}
  -
  /**
  * +-+-------------------------------------------------------------+
  * |R| Last-Stream-ID (31) |
  