MC: Eliminate MCZeroFillFragment, it is no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103664 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCMachOStreamer.cpp b/lib/MC/MCMachOStreamer.cpp
index eb49a40..fe701a7 100644
--- a/lib/MC/MCMachOStreamer.cpp
+++ b/lib/MC/MCMachOStreamer.cpp
@@ -326,7 +326,7 @@
     new MCAlignFragment(ByteAlignment, 0, 0, ByteAlignment, /*EmitNops=*/false,
                         &SectData);
 
-  MCFragment *F = new MCZeroFillFragment(Size, &SectData);
+  MCFragment *F = new MCFillFragment(0, 0, Size, &SectData);
   SD.setFragment(F);
   if (Assembler.isSymbolLinkerVisible(&SD))
     F->setAtom(&SD);