[dotnet] remove deprecated methods for toggling legacy protocol

Author: titusfortner

dotnet/src/webdriver/Chromium/ChromiumOptions.cs

@@ -185,27 +185,6 @@ public ChromiumAndroidOptions AndroidOptions
             set { this.androidOptions = value; }
         }
 
-        /// <summary>
-        /// Gets or sets a value indicating whether the <see cref="ChromiumDriver"/> instance
-        /// should use the legacy OSS protocol dialect or a dialect compliant with the W3C
-        /// WebDriver Specification.
-        /// </summary>
-        [Obsolete("Spec Compliant Protocol is the only supported protocol")]
-        public bool UseSpecCompliantProtocol
-        {
-            get { return this.useSpecCompliantProtocol; }
-            set
-            {
-                if (!value)
-                {
-                    throw new ArgumentException("Only the spec compliant protocol is supported, " +
-                                                "Please update to W3C Syntax: " +
-                                                "https://www.selenium.dev/blog/2022/legacy-protocol-support/");
-                }
-                this.useSpecCompliantProtocol = true;
-            }
-        }
-
         /// <summary>
         /// Adds a single argument to the list of arguments to be appended to the browser executable command line.
         /// </summary>

dotnet/src/webdriver/Safari/SafariDriverService.cs

@@ -34,8 +34,6 @@ public sealed class SafariDriverService : DriverService
     {
         private const string DefaultSafariDriverServiceExecutableName = "safaridriver";
 
-        private bool useLegacyProtocol;
-
         private readonly static ILogger logger = Log.GetLogger<SafariDriverService>();
 
         /// <summary>
@@ -55,22 +53,6 @@ protected override DriverOptions GetDefaultDriverOptions()
             return new SafariOptions();
         }
 
-        /// <summary>
-        /// Gets or sets a value indicating whether to use the default open-source project
-        /// dialect of the protocol instead of the default dialect compliant with the
-        /// W3C WebDriver Specification.
-        /// </summary>
-        /// <remarks>
-        /// This is only valid for versions of the driver for Safari that target Safari 12
-        /// or later, and will result in an error if used with prior versions of the driver.
-        /// </remarks>
-        [Obsolete("Only w3c protocol is currently supported")]
-        public bool UseLegacyProtocol
-        {
-            get { return this.useLegacyProtocol; }
-            set { this.useLegacyProtocol = value; }
-        }
-
         /// <summary>
         /// Gets the command-line arguments for the driver service.
         /// </summary>
@@ -79,11 +61,6 @@ protected override string CommandLineArguments
             get
             {
                 StringBuilder argsBuilder = new StringBuilder(base.CommandLineArguments);
-                if (this.useLegacyProtocol)
-                {
-                    argsBuilder.Append(" --legacy");
-                }
-
                 return argsBuilder.ToString();
             }
         }

dotnet/test/chrome/ChromeSpecificTests.cs

@@ -13,14 +13,5 @@ public void RunAfterAnyTests()
             EnvironmentManager.Instance.CloseCurrentDriver();
             EnvironmentManager.Instance.WebServer.Stop();
         }
-
-        [Test]
-        public void W3CFalse()
-        {
-            Assert.Throws<ArgumentException>(() => new ChromeOptions
-            {
-                UseSpecCompliantProtocol = false
-            });
-        }
     }
 }