Remove unecessary include that require c++20

Author: sys-ce-bb

llvm-spirv/lib/SPIRV/SPIRVToLLVMDbgTran.cpp

@@ -50,7 +50,6 @@
 #include "llvm/IR/DebugProgramInstruction.h"
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/Module.h"
-#include <bit>
 
 using namespace std;
 using namespace SPIRVDebug::Operand;