Delete Smart Indent Provider and Connected Functionality (#1313)

**Bug**
This class was only used for the old Node language service, we now pick up this functionality from TypeScript.

**Fix**
Delete the smart indent provider along with some other associated classes that are now no longer referenced.

Author: mjbvz

Nodejs/Product/Nodejs/Debugger/DataTips/DataTipTextManagerEvents.cs

@@ -226,7 +226,6 @@
     <Compile Include="Commands\OpenRemoteDebugProxyFolderCommand.cs" />
     <Compile Include="Commands\ShowDocumentationCommand.cs" />
     <Compile Include="Commands\SurveyNewsCommand.cs" />
-    <Compile Include="Debugger\DataTips\DataTipTextManagerEvents.cs" />
     <Compile Include="Debugger\DebugEngine\AD7EvalErrorProperty.cs" />
     <Compile Include="Debugger\NodeDebugProvider.cs" />
     <Compile Include="Logging\LiveLogger.cs" />
@@ -240,7 +239,6 @@
     <Compile Include="Logging\INodejsToolsLogger.cs" />
     <Compile Include="Logging\NodejsToolsLogEvent.cs" />
     <Compile Include="Logging\NodejsToolsLogger.cs" />
-    <Compile Include="Debugger\DataTips\DataTipTextViewFilter.cs" />
     <Compile Include="NodejsPackage.Debugger.cs" />
     <Compile Include="NpmUI\NpmOutputWindow.xaml.cs">
       <DependentUpon>NpmOutputWindow.xaml</DependentUpon>
@@ -315,15 +313,15 @@
     <Compile Include="Debugger\SteppingKind.cs" />
     <Compile Include="Project\NodejsFileNodeProperties.cs" />
     <Compile Include="Jade\JadeEditorFactory.cs" />
-</ItemGroup>
-<ItemGroup Condition=" '$(VisualStudioVersion)'=='14.0'  Or '$(TargetVisualStudioVersion)'=='VS140' ">
+  </ItemGroup>
+  <ItemGroup Condition=" '$(VisualStudioVersion)'=='14.0'  Or '$(TargetVisualStudioVersion)'=='VS140' ">
     <Compile Include="Options\NodejsFormattingDialogPage.cs">
       <SubType>Component</SubType>
     </Compile>
     <Compile Include="Options\NodejsFormattingBracesOptionsPage.cs">
       <SubType>Component</SubType>
     </Compile>
-    <Compile Include="Options\NodejsFormattingSpacingOptionsPage.cs" >
+    <Compile Include="Options\NodejsFormattingSpacingOptionsPage.cs">
       <SubType>Component</SubType>
     </Compile>
     <Compile Include="Options\NodejsFormattingGeneralOptionsPage.cs">
@@ -347,8 +345,8 @@
     <Compile Include="Options\NodejsFormattingSpacingOptionsControl.Designer.cs">
       <DependentUpon>NodejsFormattingSpacingOptionsControl.cs</DependentUpon>
     </Compile>
-</ItemGroup>
-<ItemGroup>
+  </ItemGroup>
+  <ItemGroup>
     <Compile Include="Project\ProjectResources.cs" />
     <Compile Include="Repl\NpmReplCommand.cs" />
     <Compile Include="TaggerProviderMetadata.cs" />
@@ -524,8 +522,6 @@
     <Compile Include="Repl\INodejsReplSite.cs" />
     <Compile Include="Repl\SaveReplCommand.cs" />
     <Compile Include="Repl\VsNodejsReplSite.cs" />
-    <Compile Include="SmartIndent.cs" />
-    <Compile Include="SmartIndentProvider.cs" />
     <Compile Include="SourceMapping\SourceMap.cs" />
     <Compile Include="TestFrameworks\TestFrameworkDirectories.cs" />
     <Compile Include="TypingsAcquisition.cs" />

Nodejs/Product/Nodejs/Debugger/DataTips/DataTipTextViewFilter.cs

@@ -27,7 +27,6 @@
 using System.Web.Script.Serialization;
 using System.Windows.Forms;
 using Microsoft.NodejsTools.Commands;
-using Microsoft.NodejsTools.Debugger.DataTips;
 using Microsoft.NodejsTools.Debugger.DebugEngine;
 using Microsoft.NodejsTools.Debugger.Remote;
 using Microsoft.NodejsTools.Jade;
@@ -39,11 +38,9 @@
 using Microsoft.NodejsTools.Telemetry;
 using Microsoft.VisualStudio;
 using Microsoft.VisualStudio.ComponentModelHost;
-using Microsoft.VisualStudio.OLE.Interop;
 using Microsoft.VisualStudio.Shell;
 using Microsoft.VisualStudio.Shell.Interop;
 using Microsoft.VisualStudio.Text;
-using Microsoft.VisualStudio.TextManager.Interop;
 using Microsoft.VisualStudio.Utilities;
 using Microsoft.VisualStudioTools;
 using Microsoft.VisualStudioTools.Project;
@@ -97,7 +94,6 @@ internal sealed partial class NodejsPackage : CommonPackage {
         private string _surveyNewsUrl;
         private object _surveyNewsUrlLock = new object();
         internal HashSet<ITextBuffer> ChangedBuffers = new HashSet<ITextBuffer>();
-        private LanguagePreferences _langPrefs;
         private NodejsToolsLogger _logger;
         private ITelemetryLogger _telemetryLogger;
         // Hold references for the subscribed events. Otherwise the callbacks will be garbage collected
@@ -208,22 +204,6 @@ protected override void Initialize() {
             }
             RegisterCommands(commands, Guids.NodejsCmdSet);
 
-            IVsTextManager4 textMgr = (IVsTextManager4)Instance.GetService(typeof(SVsTextManager));
-
-            LANGPREFERENCES3[] langPrefs = GetNodejsLanguagePreferencesFromTypeScript(textMgr);
-            _langPrefs = new LanguagePreferences(langPrefs[0]);
-
-            var textManagerEvents2Guid = typeof(IVsTextManagerEvents4).GUID;
-            IConnectionPoint textManagerEvents2ConnectionPoint;
-            ((IConnectionPointContainer)textMgr).FindConnectionPoint(ref textManagerEvents2Guid, out textManagerEvents2ConnectionPoint);
-            uint cookie;
-            textManagerEvents2ConnectionPoint.Advise(_langPrefs, out cookie);
-
-            var textManagerEventsGuid = typeof(IVsTextManagerEvents).GUID;
-            IConnectionPoint textManagerEventsConnectionPoint;
-            ((IConnectionPointContainer)textMgr).FindConnectionPoint(ref textManagerEventsGuid, out textManagerEventsConnectionPoint);
-            textManagerEventsConnectionPoint.Advise(new DataTipTextManagerEvents(this), out cookie);
-
             MakeDebuggerContextAvailable();
 
             InitializeLogging();
@@ -242,19 +222,6 @@ protected override void Initialize() {
 #endif
         }
 
-        public static LANGPREFERENCES3[] GetNodejsLanguagePreferencesFromTypeScript(IVsTextManager4 textMgr) {
-            var langPrefs = new LANGPREFERENCES3[1];
-            langPrefs[0].guidLang = Guids.TypeScriptLanguageInfo;
-            int hr = textMgr.GetUserPreferences4(null, langPrefs, null);
-            if (ErrorHandler.Failed(hr)) {
-                MessageBox.Show(Project.SR.GetString(Project.SR.CouldNotGetTypeScriptLanguagePreferences), Project.SR.ProductName);
-                ErrorHandler.ThrowOnFailure(hr);
-            }
-            langPrefs[0].guidLang = typeof(NodejsLanguageInfo).GUID;
-            textMgr.SetUserPreferences4(null, langPrefs, null);
-            return langPrefs;
-        }
-
         private void SubscribeToVsCommandEvents(
             int eventId, 
             EnvDTE._dispCommandEvents_BeforeExecuteEventHandler beforeExecute = null,
@@ -359,13 +326,6 @@ internal static bool TryGetStartupFileAndDirectory(System.IServiceProvider servi
             return true;
         }
 
-
-        internal LanguagePreferences LangPrefs {
-            get {
-                return _langPrefs;
-            }
-        }
-
         private IContentType ReplContentType {
             get {
                 if (_contentType == null) {