Remove the MCObjectFormat class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCExpr.cpp b/lib/MC/MCExpr.cpp
index 3533da2..22d8740 100644
--- a/lib/MC/MCExpr.cpp
+++ b/lib/MC/MCExpr.cpp
@@ -14,7 +14,6 @@
 #include "llvm/MC/MCAsmLayout.h"
 #include "llvm/MC/MCAssembler.h"
 #include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCObjectFormat.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/MC/MCValue.h"
 #include "llvm/Support/Debug.h"
@@ -388,8 +387,8 @@
   if (Asm && A && B) {
     const MCSymbol &SA = A->getSymbol();
     const MCSymbol &SB = B->getSymbol();
-    const MCObjectFormat &F = Asm->getBackend().getObjectFormat();
-    if (SA.isDefined() && SB.isDefined() && F.isAbsolute(InSet, SA, SB)) {
+    if (SA.isDefined() && SB.isDefined() &&
+        Asm->getWriter().isAbsolute(InSet, SA, SB)) {
       MCSymbolData &AD = Asm->getSymbolData(A->getSymbol());
       MCSymbolData &BD = Asm->getSymbolData(B->getSymbol());