Remove dead code.

llvm-svn: 217324

lld/include/lld/Core/File.h

@@ -39,7 +39,7 @@ class LinkingContext;
 /// are destroyed when the File object is destroyed.
 class File {
 public:
-  virtual ~File();
+  virtual ~File() {}
 
   /// \brief Kinds of files that are supported.
   enum Kind {
@@ -59,12 +59,6 @@ public:
     return _path;
   }
 
-  /// \brief Returns the path of the source file used to create the object
-  /// file which this (File) object represents.  This information is usually
-  /// parsed out of the DWARF debug information. If the source file cannot
-  /// be ascertained, this method returns the empty string.
-  virtual StringRef translationUnitSource() const;
-
   /// Returns the command line order of the file.
   uint64_t ordinal() const {
     assert(_ordinal != UINT64_MAX);

lld/lib/Core/File.cpp

@@ -12,12 +12,6 @@
 
 namespace lld {
 
-File::~File() {}
-
-StringRef File::translationUnitSource() const {
-  return StringRef();
-}
-
 File::atom_collection_empty<DefinedAtom>       File::_noDefinedAtoms;
 File::atom_collection_empty<UndefinedAtom>     File::_noUndefinedAtoms;
 File::atom_collection_empty<SharedLibraryAtom> File::_noSharedLibraryAtoms;