Remove unused declarations

Differential Revision: https://reviews.llvm.org/D34852

llvm-svn: 306772

lld/COFF/Driver.h

@@ -34,7 +34,6 @@ extern LinkerDriver *Driver;
 using llvm::COFF::MachineTypes;
 using llvm::COFF::WindowsSubsystem;
 using llvm::Optional;
-class InputFile;
 
 // Implemented in MarkLive.cpp.
 void markLive(const std::vector<Chunk *> &Chunks);

lld/COFF/Writer.cpp

@@ -120,7 +120,6 @@ private:
   void writeSections();
   void sortExceptionTable();
   void writeBuildId();
-  void applyRelocations();
 
   llvm::Optional<coff_symbol16> createSymbol(Defined *D);
   size_t addEntryToStringTable(StringRef Str);

lld/ELF/SymbolTable.h

@@ -18,7 +18,7 @@
 
 namespace lld {
 namespace elf {
-class Lazy;
+
 struct Symbol;
 
 // SymbolTable is a bucket of all known symbols, including defined,