Delete unused protected parameters ndim, ndim2 and ndim_pointGravity (m…

…odelica#4266)

* Delete unused protected parameters ndim, ndim2 and ndim_pointGravity

* Document changed components in release notes

* Update Modelica/package.mo

Co-authored-by: Thomas Beutlich <modelica@tbeu.de>

---------

Co-authored-by: Harisankar-Allimangalath <144321750+Harisankar-Allimangalath@users.noreply.github.com>
Co-authored-by: Thomas Beutlich <modelica@tbeu.de>

Modelica/Mechanics/MultiBody/package.mo

@@ -169,10 +169,6 @@ model World
      objects cannot be used.
   */
 protected
-  parameter Integer ndim=if enableAnimation and animateWorld then 1 else 0;
-  parameter Integer ndim2=if enableAnimation and animateWorld and
-      axisShowLabels then 1 else 0;
-
   // Parameters to define axes
   parameter SI.Length headLength=min(axisLength, axisDiameter*Types.Defaults.
       FrameHeadLengthFraction);
@@ -301,8 +297,6 @@ protected
     specularCoefficient=0) if enableAnimation and animateGravity and gravityType == GravityTypes.UniformGravity;
 
   // Point gravity visualization
-  parameter Integer ndim_pointGravity=if enableAnimation and animateGravity
-       and gravityType == GravityTypes.UniformGravity then 1 else 0;
   Modelica.Mechanics.MultiBody.Visualizers.Advanced.Shape gravitySphere(
     shapeType="sphere",
     r_shape={-gravitySphereDiameter/2,0,0},

Modelica/package.mo

@@ -2530,6 +2530,10 @@ The following <font color=\"blue\"><strong>existing components</strong></font> h
 </p>
 
 <table border=\"1\" cellspacing=\"0\" cellpadding=\"2\" style=\"border-collapse:collapse;\">
+<tr><td colspan=\"2\"><strong>Mechanics.MultiBody</strong></td></tr>
+<tr><td>World</td>
+    <td>The protected parameters <code>ndim</code>, <code>ndim2</code> and
+        <code>ndim_pointGravity</code> have been removed.</td></tr>
 <tr><td colspan=\"2\"><strong>Mechanics.Rotational.Components</strong></td></tr>
 <tr><td>Brake<br>Clutch<br>OneWayClutch</td>
     <td>The table interpolation in <code>mu_pos</code> utilizes the interpolation based on <a href=\"modelica://Modelica.Blocks.Types.ExternalCombiTable1D\">ExternalCombiTable1D</a>.<br>The public variable <code>mu0</code> was changed to a protected final parameter.</td></tr>