Unbreak build on gcc 3.x


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45315 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/CodeGen/MachineLoopInfo.h b/include/llvm/CodeGen/MachineLoopInfo.h
index 4102b90..166fc6b 100644
--- a/include/llvm/CodeGen/MachineLoopInfo.h
+++ b/include/llvm/CodeGen/MachineLoopInfo.h
@@ -70,9 +70,6 @@
   return false;
 }
 
-EXTERN_TEMPLATE_INSTANTIATION(class LoopBase<MachineBasicBlock>);
-EXTERN_TEMPLATE_INSTANTIATION(class LoopInfoBase<MachineBasicBlock>);
-
 typedef LoopBase<MachineBasicBlock> MachineLoop;
 
 class MachineLoopInfo : public MachineFunctionPass {