address pr comments

Author: farzonl

llvm/lib/Target/SPIRV/SPIRVCombine.td

@@ -4,10 +4,6 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
-//===----------------------------------------------------------------------===//
-//
-//
-//===----------------------------------------------------------------------===//
 
 include "llvm/Target/GlobalISel/Combine.td"