Remove unused local variable

[AndyAyers]

Summary

Fix warning caused by unused local variable. NFC.

[dblaikie]

committed something like this along with another fix in 252580

Feel free to just commit stuff like this without review in the future, if
you have commit access - it's simple enough.

[AndyAyers]

Or just not cause the problem in the first place... not sure why the builds I did didn’t flag this.

From: David Blaikie [mailto:[e-mail]]
Sent: Monday, November 9, 2015 7:20 PM
To: [e-mail]; Andy Ayers <[e-mail]>
Cc: llvm-commits <[e-mail]>
Subject: Re: [PATCH] D14525: Remove unused local variable

committed something like this along with another fix in 252580

Feel free to just commit stuff like this without review in the future, if you have commit access - it's simple enough.

[AndyAyers]

Fixed by 252580

lib/Target/X86/X86FrameLowering.cpp

 }
 
 MachineInstr *X86FrameLowering::emitStackProbeInlineStub(
     MachineFunction &MF, MachineBasicBlock &MBB,
     MachineBasicBlock::iterator MBBI, DebugLoc DL, bool InProlog) const {
 
   assert(InProlog && "ChkStkStub called outside prolog!");
 
-  MachineInstrBuilder CI = BuildMI(MBB, MBBI, DL, TII.get(X86::CALLpcrel32))
-                               .addExternalSymbol("__chkstk_stub");
+  BuildMI(MBB, MBBI, DL, TII.get(X86::CALLpcrel32))
 
   return MBBI;
 }
 
 static unsigned calculateSetFPREG(uint64_t SPAdjust) {
   // Win64 ABI has a less restrictive limitation of 240; 128 works equally well
   // and might require smaller successive adjustments.
   const uint64_t Win64MaxSEHOffset = 128;