Move to llvm-objdump a large amount of code to that is only used there.

llvm-svn: 238898
diff --git a/llvm/lib/Object/Object.cpp b/llvm/lib/Object/Object.cpp
index 67e5024..85f2436 100644
--- a/llvm/lib/Object/Object.cpp
+++ b/llvm/lib/Object/Object.cpp
@@ -230,12 +230,6 @@
 
 // NOTE: Caller takes ownership of returned string.
 const char *LLVMGetRelocationValueString(LLVMRelocationIteratorRef RI) {
-  SmallVector<char, 0> ret;
-  if (std::error_code ec = (*unwrap(RI))->getValueString(ret))
-    report_fatal_error(ec.message());
-
-  char *str = static_cast<char*>(malloc(ret.size()));
-  std::copy(ret.begin(), ret.end(), str);
-  return str;
+  return strdup("");
 }