Remove foldcase from missing features

Author: Andres-Salamanca

clang/include/clang/CIR/MissingFeatures.h

@@ -161,7 +161,6 @@ struct MissingFeatures {
   static bool targetSpecificCXXABI() { return false; }
   static bool moduleNameHash() { return false; }
   static bool setDSOLocal() { return false; }
-  static bool foldCaseStmt() { return false; }
   static bool constantFoldSwitchStatement() { return false; }
 
   // Missing types

clang/lib/CIR/CodeGen/CIRGenStmt.cpp

@@ -565,7 +565,6 @@ mlir::LogicalResult CIRGenFunction::emitCaseStmt(const CaseStmt &s,
                                                  bool buildingTopLevelCase) {
   cir::CaseOpKind kind;
   mlir::ArrayAttr value;
-  assert(!cir::MissingFeatures::foldCaseStmt());
   const CaseStmt *caseStmt = foldCaseStmt(s, condType, value, kind);
   return emitCaseDefaultCascade(caseStmt, condType, value, kind,
                                 buildingTopLevelCase);