gold/CMakeLists.txt: Prune (-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64).

They are handled in HandleLLVMOptions.cmake for -m32.
They are not required for -m64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309532 91177308-0d34-0410-b5e6-96231b3b80d8

tools/gold/CMakeLists.txt

@@ -3,10 +3,6 @@ set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/gold.exports)
 if( LLVM_ENABLE_PIC AND LLVM_BINUTILS_INCDIR )
   include_directories( ${LLVM_BINUTILS_INCDIR} )
 
-  # Because off_t is used in the public API, the largefile parts are required for
-  # ABI compatibility.
-  add_definitions( -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 )
-
   set(LLVM_LINK_COMPONENTS
      ${LLVM_TARGETS_TO_BUILD}
      Linker