[clang] Revert "[Clang] Implement CWG2369 "Ordering between constraints and substitution"" (PR #122130)

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git-clang-format --diff b054289882145f5a1aa8e1d6538ac4714df17059 6be06e0d53c365479ef813b2a7057a3591a1c457 --extensions cpp,h -- clang/include/clang/Sema/Sema.h clang/include/clang/Sema/Template.h clang/lib/Sema/SemaConcept.cpp clang/lib/Sema/SemaTemplateDeduction.cpp clang/lib/Sema/SemaTemplateDeductionGuide.cpp clang/lib/Sema/SemaTemplateInstantiate.cpp clang/lib/Sema/TreeTransform.h clang/test/CXX/drs/cwg23xx.cpp clang/test/CXX/drs/cwg26xx.cpp clang/test/CXX/drs/cwg27xx.cpp clang/test/CXX/expr/expr.prim/expr.prim.req/nested-requirement.cpp clang/test/CXX/temp/temp.constr/temp.constr.atomic/constrant-satisfaction-conversions.cpp clang/test/SemaCXX/concept-crash-on-diagnostic.cpp clang/test/SemaCXX/cxx20-ctad-type-alias.cpp clang/test/SemaCXX/cxx23-assume.cpp clang/test/SemaCXX/cxx2c-fold-exprs.cpp clang/test/SemaCXX/lambda-unevaluated.cpp clang/test/SemaTemplate/concepts-recursive-inst.cpp clang/test/SemaTemplate/cxx2a-constraint-exprs.cpp clang/test/SemaTemplate/deduction-guide.cpp clang/test/SemaTemplate/nested-implicit-deduction-guides.cpp
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``````````diff
diff --git a/clang/lib/Sema/SemaTemplateInstantiate.cpp b/clang/lib/Sema/SemaTemplateInstantiate.cpp
index fb0f38df62..50988e8c17 100644
--- a/clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -1405,12 +1405,9 @@ namespace {
                                  ArrayRef<UnexpandedParameterPack> Unexpanded,
                                  bool &ShouldExpand, bool &RetainExpansion,
                                  std::optional<unsigned> &NumExpansions) {
-      return getSema().CheckParameterPacksForExpansion(EllipsisLoc,
-                                                       PatternRange, Unexpanded,
-                                                       TemplateArgs,
-                                                       ShouldExpand,
-                                                       RetainExpansion,
-                                                       NumExpansions);
+      return getSema().CheckParameterPacksForExpansion(
+          EllipsisLoc, PatternRange, Unexpanded, TemplateArgs, ShouldExpand,
+          RetainExpansion, NumExpansions);
     }
 
     void ExpandingFunctionParameterPack(ParmVarDecl *Pack) {
@@ -4591,7 +4588,6 @@ static const Decl *getCanonicalParmVarDecl(const Decl *D) {
   return D;
 }
 
-
 llvm::PointerUnion<Decl *, LocalInstantiationScope::DeclArgumentPack *> *
 LocalInstantiationScope::findInstantiationOf(const Decl *D) {
   D = getCanonicalParmVarDecl(D);

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https://github.com/llvm/llvm-project/pull/122130