Delete unused type parameter

src/Features/Core/Portable/RQName/Nodes/RQMember.cs

@@ -9,7 +9,7 @@
 
 namespace Microsoft.CodeAnalysis.Features.RQName.Nodes
 {
-    internal abstract class RQMember : RQNode<IFieldSymbol>
+    internal abstract class RQMember : RQNode
     {
         public readonly RQUnconstructedType ContainingType;
 

src/Features/Core/Portable/RQName/Nodes/RQMemberParameterIndex.cs

@@ -9,7 +9,7 @@
 
 namespace Microsoft.CodeAnalysis.Features.RQName.Nodes
 {
-    internal class RQMemberParameterIndex : RQNode<IParameterSymbol>
+    internal class RQMemberParameterIndex : RQNode
     {
         public readonly RQMember ContainingMember;
         public readonly int ParameterIndex;

src/Features/Core/Portable/RQName/Nodes/RQNamespace.cs

@@ -8,7 +8,7 @@
 
 namespace Microsoft.CodeAnalysis.Features.RQName.Nodes
 {
-    internal class RQNamespace : RQTypeOrNamespace<INamespaceSymbol>
+    internal class RQNamespace : RQTypeOrNamespace
     {
         public RQNamespace(IList<string> namespaceNames) : base(namespaceNames) { }
 

src/Features/Core/Portable/RQName/Nodes/RQTypeOrNamespace.cs

@@ -11,7 +11,7 @@
 
 namespace Microsoft.CodeAnalysis.Features.RQName.Nodes
 {
-    internal abstract class RQTypeOrNamespace<ResolvedType> : RQNode<ResolvedType>
+    internal abstract class RQTypeOrNamespace : RQNode
     {
         public readonly ReadOnlyCollection<string> NamespaceNames;
 

src/Features/Core/Portable/RQName/Nodes/RQUnconstructedType.cs

@@ -11,7 +11,7 @@
 
 namespace Microsoft.CodeAnalysis.Features.RQName.Nodes
 {
-    internal class RQUnconstructedType : RQTypeOrNamespace<ITypeSymbol>
+    internal class RQUnconstructedType : RQTypeOrNamespace
     {
         public readonly ReadOnlyCollection<RQUnconstructedTypeInfo> TypeInfos;
 

src/Features/Core/Portable/RQName/Nodes/ResolvedRQNode.cs

@@ -6,7 +6,7 @@
 
 namespace Microsoft.CodeAnalysis.Features.RQName.Nodes
 {
-    internal abstract class RQNode<ResolvedType> : UnresolvedRQNode
+    internal abstract class RQNode : UnresolvedRQNode
     {
     }
 }