[WebAssembly] Remove unused method from WebAssemblyTargetStreamer. NFC

llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyTargetStreamer.h

 /// WebAssembly-specific streamer interface, to implement support
 /// WebAssembly-specific assembly directives.
 class WebAssemblyTargetStreamer : public MCTargetStreamer {
 public:
   explicit WebAssemblyTargetStreamer(MCStreamer &S);
 
   /// .local
   virtual void emitLocal(ArrayRef<wasm::ValType> Types) = 0;
-  /// .endfunc
-  virtual void emitEndFunc() = 0;
   /// .functype
   virtual void emitFunctionType(const MCSymbolWasm *Sym) = 0;
   /// .indidx
   virtual void emitIndIdx(const MCExpr *Value) = 0;
   /// .globaltype
   virtual void emitGlobalType(const MCSymbolWasm *Sym) = 0;
   /// .tabletype
   virtual void emitTableType(const MCSymbolWasm *Sym) = 0;

 /// This part is for ascii assembly output
 class WebAssemblyTargetAsmStreamer final : public WebAssemblyTargetStreamer {
   formatted_raw_ostream &OS;
 
 public:
   WebAssemblyTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
 
   void emitLocal(ArrayRef<wasm::ValType> Types) override;
-  void emitEndFunc() override;
   void emitFunctionType(const MCSymbolWasm *Sym) override;
   void emitIndIdx(const MCExpr *Value) override;
   void emitGlobalType(const MCSymbolWasm *Sym) override;
   void emitTableType(const MCSymbolWasm *Sym) override;
   void emitTagType(const MCSymbolWasm *Sym) override;
   void emitImportModule(const MCSymbolWasm *Sym, StringRef ImportModule) override;
   void emitImportName(const MCSymbolWasm *Sym, StringRef ImportName) override;
   void emitExportName(const MCSymbolWasm *Sym, StringRef ExportName) override;
 };
 
 /// This part is for Wasm object output
 class WebAssemblyTargetWasmStreamer final : public WebAssemblyTargetStreamer {
 public:
   explicit WebAssemblyTargetWasmStreamer(MCStreamer &S);
 
   void emitLocal(ArrayRef<wasm::ValType> Types) override;
-  void emitEndFunc() override;
   void emitFunctionType(const MCSymbolWasm *Sym) override {}
   void emitIndIdx(const MCExpr *Value) override;
   void emitGlobalType(const MCSymbolWasm *Sym) override {}
   void emitTableType(const MCSymbolWasm *Sym) override {}
   void emitTagType(const MCSymbolWasm *Sym) override {}
   void emitImportModule(const MCSymbolWasm *Sym,
                         StringRef ImportModule) override {}
   void emitImportName(const MCSymbolWasm *Sym,
                       StringRef ImportName) override {}
   void emitExportName(const MCSymbolWasm *Sym,
                       StringRef ExportName) override {}
 };
 
 /// This part is for null output
 class WebAssemblyTargetNullStreamer final : public WebAssemblyTargetStreamer {
 public:
   explicit WebAssemblyTargetNullStreamer(MCStreamer &S)
       : WebAssemblyTargetStreamer(S) {}
 
   void emitLocal(ArrayRef<wasm::ValType>) override {}
-  void emitEndFunc() override {}
   void emitFunctionType(const MCSymbolWasm *) override {}
   void emitIndIdx(const MCExpr *) override {}
   void emitGlobalType(const MCSymbolWasm *) override {}
   void emitTableType(const MCSymbolWasm *) override {}
   void emitTagType(const MCSymbolWasm *) override {}
   void emitImportModule(const MCSymbolWasm *, StringRef) override {}
   void emitImportName(const MCSymbolWasm *, StringRef) override {}
   void emitExportName(const MCSymbolWasm *, StringRef) override {}
 };
 
 } // end namespace llvm
 
 #endif

llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyTargetStreamer.cpp

 
 void WebAssemblyTargetAsmStreamer::emitLocal(ArrayRef<wasm::ValType> Types) {
   if (!Types.empty()) {
     OS << "\t.local  \t";
     printTypes(OS, Types);
   }
 }
 
-void WebAssemblyTargetAsmStreamer::emitEndFunc() { OS << "\t.endfunc\n"; }
-
 void WebAssemblyTargetAsmStreamer::emitFunctionType(const MCSymbolWasm *Sym) {
   assert(Sym->isFunction());
   OS << "\t.functype\t" << Sym->getName() << " ";
   OS << WebAssembly::signatureToString(Sym->getSignature());
   OS << "\n";
 }
 
 void WebAssemblyTargetAsmStreamer::emitGlobalType(const MCSymbolWasm *Sym) {
void WebAssemblyTargetWasmStreamer::emitLocal(ArrayRef<wasm::ValType> Types) {
 
   Streamer.emitULEB128IntValue(Grouped.size());
   for (auto Pair : Grouped) {
     Streamer.emitULEB128IntValue(Pair.second);
     emitValueType(Pair.first);
   }
 }
 
-void WebAssemblyTargetWasmStreamer::emitEndFunc() {
-  llvm_unreachable(".end_func is not needed for direct wasm output");
-}
-
 void WebAssemblyTargetWasmStreamer::emitIndIdx(const MCExpr *Value) {
   llvm_unreachable(".indidx encoding not yet implemented");
 }