Remove link clicks interception (#348)

After implementing `textDocument/show`, there is no need to intercept
link clicks in VS. These clicks are handled in the agent.
## Test plan
N/A
<!-- REQUIRED; info at
https://docs-legacy.sourcegraph.com/dev/background-information/testing_principles
-->

Co-authored-by: Tomasz Gołębiowski <[email protected]>

Author: tomaszgolebiowski

src/Cody.Core/Agent/WebviewMessageHandler.cs

@@ -1,8 +1,7 @@
-using Cody.Core.Agent.Protocol;
 using Cody.Core.Infrastructure;
+using Cody.Core.Logging;
 using Newtonsoft.Json.Linq;
 using System;
-using Cody.Core.Logging;
 
 namespace Cody.Core.Agent
 {
@@ -12,7 +11,6 @@ public class WebviewMessageHandler
         private readonly ILog _logger;
 
         private readonly Action _onOptionsPageShowRequest;
-        
 
         public WebviewMessageHandler(IDocumentService documentService, Action onOptionsPageShowRequest, ILog logger)
         {
@@ -31,12 +29,8 @@ public bool HandleMessage(string message)
                 // or for messages that are intercepted but should still be forwarded to the agent.
                 switch (json.command?.ToString())
                 {
-                    case "auth":
-                        return HandleAuthCommand(json);
                     case "command":
                         return HandleCommandCommand(json);
-                    case "openFileLink":
-                        return HandleOpenFileLinkCommand(json);
                     default:
                         return false;
                 }
@@ -47,14 +41,6 @@ public bool HandleMessage(string message)
             }
         }
 
-        private bool HandleAuthCommand(dynamic json)
-        {
-            // login/logout handled by the agent via accessing secret storage 
-
-            // Always return false to allow the request to be forwarded to the agent.
-            return false;
-        }
-
         private bool HandleCommandCommand(dynamic json)
         {
             if (json.id == "cody.status-bar.interacted")
@@ -64,25 +50,5 @@ private bool HandleCommandCommand(dynamic json)
             }
             return false;
         }
-
-        private bool HandleOpenFileLinkCommand(dynamic json)
-        {
-            try
-            {
-                var path = json.uri?.path?.ToString();
-                var range = json.range?.ToObject<Range>();
-                if (!string.IsNullOrEmpty(path))
-                {
-                    _documentService.ShowDocument(path.ToWindowsPath(), range);
-                    return true;
-                }
-            }
-            catch (Exception ex)
-            {
-                _logger.Error($"Opening file link failed:'{json.ToString()}'", ex);
-            }
-
-            return false;
-        }
     }
 }