MCAssembler: Remove unused functions

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Differential Revision: https://phabricator.intern.facebook.com/D60251421

Author: MaskRay

llvm/include/llvm/MC/MCAssembler.h

@@ -143,7 +143,6 @@ class MCAssembler {
               std::unique_ptr<MCObjectWriter> Writer);
   MCAssembler(const MCAssembler &) = delete;
   MCAssembler &operator=(const MCAssembler &) = delete;
-  ~MCAssembler();
 
   /// Compute the effective fragment size.
   uint64_t computeFragmentSize(const MCFragment &F) const;
@@ -193,7 +192,6 @@ class MCAssembler {
   MCObjectWriter &getWriter() const { return *Writer; }
 
   MCDwarfLineTableParams getDWARFLinetableParams() const { return LTParams; }
-  void setDWARFLinetableParams(MCDwarfLineTableParams P) { LTParams = P; }
 
   /// Finish - Do final processing and write the object to the output stream.
   /// \p Writer is used for custom object writer (as the MCJIT does),

llvm/lib/MC/MCAssembler.cpp

@@ -86,8 +86,6 @@ MCAssembler::MCAssembler(MCContext &Context,
     : Context(Context), Backend(std::move(Backend)),
       Emitter(std::move(Emitter)), Writer(std::move(Writer)) {}
 
-MCAssembler::~MCAssembler() = default;
-
 void MCAssembler::reset() {
   RelaxAll = false;
   Sections.clear();