Remove exception obsoletion

Author: RenderMichael

dotnet/src/webdriver/UnhandledAlertException.cs

@@ -28,10 +28,14 @@ namespace OpenQA.Selenium
     [Serializable]
     public class UnhandledAlertException : WebDriverException
     {
+        /// <summary>
+        /// Gets the text of the unhandled alert.
+        /// </summary>
+        public string AlertText { get; } = string.Empty;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="UnhandledAlertException"/> class.
         /// </summary>
-        [Obsolete("Use a constructor overload that sets alertText")]
         public UnhandledAlertException()
             : base()
         {
@@ -42,7 +46,6 @@ public UnhandledAlertException()
         /// a specified error message.
         /// </summary>
         /// <param name="message">The message that describes the error.</param>
-        [Obsolete("Use a constructor overload that sets alertText")]
         public UnhandledAlertException(string message)
             : base(message)
         {
@@ -68,15 +71,9 @@ public UnhandledAlertException(string message, string alertText)
         /// <param name="message">The error message that explains the reason for the exception.</param>
         /// <param name="innerException">The exception that is the cause of the current exception,
         /// or <see langword="null"/> if no inner exception is specified.</param>
-        [Obsolete("Use a constructor overload that sets alertText")]
         public UnhandledAlertException(string message, Exception innerException)
             : base(message, innerException)
         {
         }
-
-        /// <summary>
-        /// Gets the text of the unhandled alert.
-        /// </summary>
-        public string AlertText { get; } = string.Empty;
     }
 }