[Mips] Rollback explicit instantiation of MipsELFFile template class

This is a follow-up to r234728 and r234729. It looks like explicit
instantiation of `MipsELFFile` is redundant and triggers Visual C++ warning.

llvm-svn: 234756

lld/lib/ReaderWriter/ELF/Mips/CMakeLists.txt

@@ -1,6 +1,5 @@
 add_llvm_library(lldMipsELFTarget
   MipsCtorsOrderPass.cpp
-  MipsELFFile.cpp
   MipsELFFlagsMerger.cpp
   MipsLinkingContext.cpp
   MipsRelocationHandler.cpp

lld/lib/ReaderWriter/ELF/Mips/MipsELFFile.cpp

@@ -1,21 +0,0 @@
-//===- lib/ReaderWriter/ELF/Mips/MipsELFFile.cpp --------------------------===//
-//
-//                             The LLVM Linker
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MipsELFFile.h"
-
-namespace lld {
-namespace elf {
-
-MIPSFILE_INSTANTIATION(Mips32ELType)
-MIPSFILE_INSTANTIATION(Mips64ELType)
-MIPSFILE_INSTANTIATION(Mips32BEType)
-MIPSFILE_INSTANTIATION(Mips64BEType)
-
-}
-}

lld/lib/ReaderWriter/ELF/Mips/MipsELFFile.h

@@ -289,21 +289,6 @@ private:
   }
 };
 
-#define EXTERN_MIPSFILE_INSTANTIATION(T)                                       \
-  EXTERN_TEMPLATE_INSTANTIATION(class MipsELFDefinedAtom<T>);                  \
-  EXTERN_TEMPLATE_INSTANTIATION(class MipsELFReference<T>);                    \
-  EXTERN_TEMPLATE_INSTANTIATION(class MipsELFFile<T>);
-
-#define MIPSFILE_INSTANTIATION(T)                                              \
-  TEMPLATE_INSTANTIATION(class MipsELFDefinedAtom<T>);                         \
-  TEMPLATE_INSTANTIATION(class MipsELFReference<T>);                           \
-  TEMPLATE_INSTANTIATION(class MipsELFFile<T>);
-
-EXTERN_MIPSFILE_INSTANTIATION(Mips32ELType)
-EXTERN_MIPSFILE_INSTANTIATION(Mips64ELType)
-EXTERN_MIPSFILE_INSTANTIATION(Mips32BEType)
-EXTERN_MIPSFILE_INSTANTIATION(Mips64BEType)
-
 } // elf
 } // lld