More cleanup after removing the ability to reference a dependent

VarTemplateSpecializationDecl.

clang/lib/Sema/SemaExpr.cpp

@@ -17925,8 +17925,6 @@ static void DoMarkVarDeclReferenced(Sema &SemaRef, SourceLocation Loc,
   bool NeedDefinition =
       OdrUse == OdrUseContext::Used || NeededForConstantEvaluation;
 
-  VarTemplateSpecializationDecl *VarSpec =
-      dyn_cast<VarTemplateSpecializationDecl>(Var);
   assert(!isa<VarTemplatePartialSpecializationDecl>(Var) &&
          "Can't instantiate a partial template specialization.");
 
@@ -17961,14 +17959,6 @@ static void DoMarkVarDeclReferenced(Sema &SemaRef, SourceLocation Loc,
           Var->setTemplateSpecializationKind(TSK, PointOfInstantiation);
       }
 
-      bool InstantiationDependent = false;
-      bool IsNonDependent =
-          VarSpec ? !TemplateSpecializationType::anyDependentTemplateArguments(
-                        VarSpec->getTemplateArgsInfo(), InstantiationDependent)
-                  : true;
-
-      // Do not instantiate specializations that are still type-dependent.
-      if (IsNonDependent) {
       if (UsableInConstantExpr) {
         // Do not defer instantiations of variables that could be used in a
         // constant expression.
@@ -17987,7 +17977,6 @@ static void DoMarkVarDeclReferenced(Sema &SemaRef, SourceLocation Loc,
       }
     }
   }
-  }
 
   // C++2a [basic.def.odr]p4:
   //   A variable x whose name appears as a potentially-evaluated expression e