Removed changes left over

Author: Chris Jakeman

Source/Documentation/Manual/options.rst

@@ -391,26 +391,6 @@ displayed as a message. This option is described in detail
 :ref:`here <physics-curve-speed-limit-application>` (OR application).
 OR does not display the damage.
 
-.. _options-tunnel-resistance:
-
-Tunnel dependent resistance
----------------------------
-
-When this option is selected, OR takes into account the fact that trains
-in tunnels are subject to higher air resistance, and therefore need a
-higher effort at invariant speed. This option is described in detail
-:ref:`here <physics-tunnel-friction>` (theory) and
-:ref:`here <physics-tunnel-friction-application>` (OR application).
-
-.. _options-wind-resistance:
-
-Wind dependent resistance
--------------------------
-
-When this option is selected, resistance to train motion is influenced by
-the wind speed, and the direction that it is blowing. This option is
-described in detail :ref:`here <physics-wind-resistance>`
-
 
 Steam locomotive hot start
 --------------------------

Source/Menu/Options.cs

@@ -189,8 +189,6 @@ public OptionsForm(UserSettings settings, UpdateManager updateManager, bool init
             numericAdhesionMovingAverageFilterSize.Value = Settings.AdhesionMovingAverageFilterSize;
             checkBreakCouplers.Checked = Settings.BreakCouplers;
             checkCurveSpeedDependent.Checked = Settings.CurveSpeedDependent;
-            checkTunnelResistanceDependent.Checked = Settings.TunnelResistanceDependent;
-            checkWindResistanceDependent.Checked = Settings.WindResistanceDependent;
             checkHotStart.Checked = Settings.HotStart;
             checkForcedRedAtStationStops.Checked = !Settings.NoForcedRedAtStationStops;
             checkDoorsAITrains.Checked = Settings.OpenDoorsInAITrains;
@@ -467,8 +465,6 @@ void buttonOK_Click(object sender, EventArgs e)
             Settings.AdhesionMovingAverageFilterSize = (int)numericAdhesionMovingAverageFilterSize.Value;
             Settings.BreakCouplers = checkBreakCouplers.Checked;
             Settings.CurveSpeedDependent = checkCurveSpeedDependent.Checked;
-            Settings.TunnelResistanceDependent = checkTunnelResistanceDependent.Checked;
-            Settings.WindResistanceDependent = checkWindResistanceDependent.Checked;
             Settings.HotStart = checkHotStart.Checked;
             Settings.NoForcedRedAtStationStops = !checkForcedRedAtStationStops.Checked;
             Settings.OpenDoorsInAITrains = checkDoorsAITrains.Checked;