remove dxfeed REST from docs

docs/sessions.rst

@@ -27,56 +27,3 @@ You can make a session persistent by generating a remember token, which is valid
    remember_token = session.remember_token
    # remember token replaces the password for the next login
    new_session = ProductionSession('username', remember_token=remember_token)
-
-Events
-------
-
-A ``ProductionSession`` can be used to make simple requests to the dxfeed REST API and pull quotes, greeks and more.
-These requests are slower than ``DXFeedStreamer`` and a separate request is required for each event fetched, so they're really more appropriate for a task that just needs to grab some information once. For recurring data feeds/streams or more time-sensitive tasks, the streamer is more appropriate.
-
-Events are simply market data at a specific timestamp. There's a variety of different kinds of events supported, including:
-
-- ``Candle``
-  Information about open, high, low, and closing prices for an instrument during a certain time range
-- ``Greeks``
-  (options only) Black-Scholes variables for an option, like delta, gamma, and theta
-- ``Quote``
-  Live bid and ask prices for an instrument
-
-Let's look at some examples for these three:
-
-.. code-block:: python
-
-   from tastytrade.dxfeed import EventType
-   symbols = ['SPY', 'SPX']
-   quotes = session.get_event(EventType.QUOTE, symbols)
-   print(quotes)
-
->>> [Quote(eventSymbol='SPY', eventTime=0, sequence=0, timeNanoPart=0, bidTime=0, bidExchangeCode='Q', bidPrice=411.58, bidSize=400.0, askTime=0, askExchangeCode='Q', askPrice=411.6, askSize=1313.0), Quote(eventSymbol='SPX', eventTime=0, sequence=0, timeNanoPart=0, bidTime=0, bidExchangeCode='\x00', bidPrice=4122.49, bidSize='NaN', askTime=0, askExchangeCode='\x00', askPrice=4123.65, askSize='NaN')]
-
-To fetch greeks, we need the option symbol in dxfeed format, which can be obtained using :meth:`get_option_chain`:
-
-.. code-block:: python
-
-   from tastytrade.instruments import get_option_chain
-   from datetime import date
-
-   chain = get_option_chain(session, 'SPLG')
-   subs_list = [chain[date(2023, 6, 16)][0].streamer_symbol]
-   greeks = session.get_event(EventType.GREEKS, subs_list)
-   print(greeks)
-
->>> [Greeks(eventSymbol='.SPLG230616C23', eventTime=0, eventFlags=0, index=7235129486797176832, time=1684559855338, sequence=0, price=26.3380972233688, volatility=0.396983376650804, delta=0.999999999996191, gamma=4.81989763184255e-12, theta=-2.5212017514875e-12, rho=0.01834504287973133, vega=3.7003015672215e-12)]
-
-Fetching candles requires a bit more info, like the candle width and the start time:
-
-.. code-block:: python
-
-   from datetime import datetime, timedelta
-
-   subs_list = ['SPY']
-   start_time = datetime.now() - timedelta(days=30)  # 1 month ago
-   candles = session.get_candle(subs_list, interval='1d', start_time=start_time)
-   print(candles[-3:])
-
->>> [Candle(eventSymbol='SPY{=d}', eventTime=0, eventFlags=0, index=7254715159019520000, time=1689120000000, sequence=0, count=142679, open=446.39, high=447.4799, low=444.91, close=446.02, volume=91924527, vwap=445.258750197419, bidVolume=14787054, askVolume=15196448, impVolatility='NaN', openInterest='NaN'), Candle(eventSymbol='SPY{=d}', eventTime=0, eventFlags=0, index=7255086244193894400, time=1689206400000, sequence=0, count=106759, open=447.9, high=450.38, low=447.45, close=449.56, volume=72425241, vwap=448.163832976481, bidVolume=10384321, askVolume=11120400, impVolatility='NaN', openInterest='NaN'), Candle(eventSymbol='SPY{=d}', eventTime=0, eventFlags=0, index=7255457329368268800, time=1689292800000, sequence=0, count=113369, open=450.475, high=451.36, low=448.49, close=449.28, volume=69815823, vwap=449.948156765549, bidVolume=10905920, askVolume=13136337, impVolatility='NaN', openInterest='NaN')]