Remove excessive Picker API doc comment (#25016)

Author: jfversluis

src/Controls/docs/Microsoft.Maui.Controls/Picker.xml

@@ -34,90 +34,6 @@
     <summary>A <see cref="T:Microsoft.Maui.Controls.View" /> control for picking an element in a list.</summary>
     <remarks>
       <para>The visual representation of a Picker is similar to a <see cref="T:Microsoft.Maui.Controls.Entry" />, but a picker control appears in place of a keyboard.</para>
-      <para>The following example shows the creation of a Picker.</para>
-      <example>
-        <code lang="csharp lang-csharp"><![CDATA[using System;
-using System.Collections.Generic;
-using Microsoft.Maui.Controls;
-    
-namespace FormsGallery
-{
-    class PickerDemoPage : ContentPage
-    {
-        // Dictionary to get Color from color name.
-        Dictionary<string, Color> nameToColor = new Dictionary<string, Color>
-        {
-            { "Aqua", Color.Aqua }, { "Black", Color.Black },
-            { "Blue", Color.Blue }, { "Fuchsia", Color.Fuchsia },
-            { "Gray", Color.Gray }, { "Green", Color.Green },
-            { "Lime", Color.Lime }, { "Maroon", Color.Maroon },
-            { "Navy", Color.Navy }, { "Olive", Color.Olive },
-            { "Purple", Color.Purple }, { "Red", Color.Red },
-            { "Silver", Color.Silver }, { "Teal", Color.Teal },
-            { "White", Color.White }, { "Yellow", Color.Yellow }
-        };
-    
-        public PickerDemoPage()
-        {
-            Label header = new Label
-            {
-                Text = "Picker",
-                FontSize = Device.GetNamedSize (NamedSize.Large, typeof(Label)),
-                HorizontalOptions = LayoutOptions.Center
-            };
-    
-            Picker picker = new Picker
-            {
-                Title = "Color",
-                VerticalOptions = LayoutOptions.CenterAndExpand
-            };
-    
-            foreach (string colorName in nameToColor.Keys)
-            {
-                picker.Items.Add(colorName);
-            }
-    
-            // Create BoxView for displaying picked Color
-            BoxView boxView = new BoxView
-            {
-                WidthRequest = 150,
-                HeightRequest = 150,
-                HorizontalOptions = LayoutOptions.Center,
-                VerticalOptions = LayoutOptions.CenterAndExpand
-            };
-    
-            picker.SelectedIndexChanged += (sender, args) =>
-                {
-                    if (picker.SelectedIndex == -1)
-                    {
-                        boxView.Color = Color.Default;
-                    }
-                    else
-                    {
-                        string colorName = picker.Items[picker.SelectedIndex];
-                        boxView.Color = nameToColor[colorName];
-                    }
-                };
-    
-            // Accomodate iPhone status bar.
-            this.Padding = new Thickness(10, Device.OnPlatform(20, 0, 0), 10, 5);
-    
-            // Build the page.
-            this.Content = new StackLayout
-            {
-                Children =
-                {
-                    header,
-                    picker,
-                    boxView
-                }
-            };
-    
-        }
-    }
-}
-]]></code>
-      </example>
       <para>
         <img href="~/xml/Microsoft.Maui.Controls/_images/Picker.TripleScreenShot.png" />
       </para>