[Disassembler] Delete the VStream parameter of MCDisassembler::getInstruction()

The argument is llvm::null() everywhere except llvm::errs() in
llvm-objdump in -DLLVM_ENABLE_ASSERTIONS=On builds. It is used by no
target but X86 in -DLLVM_ENABLE_ASSERTIONS=On builds.

If we ever have the needs to add verbose log to disassemblers, we can
record log with a member function, instead of passing it around as an
argument.

1 files changed, 0 insertions, 2 deletions

diff --git a/llvm/lib/Target/SystemZ/Disassembler/SystemZDisassembler.cpp b/llvm/lib/Target/SystemZ/Disassembler/SystemZDisassembler.cpp
index 70c26db33ce..95a804cf803 100644
--- a/llvm/lib/Target/SystemZ/Disassembler/SystemZDisassembler.cpp
+++ b/llvm/lib/Target/SystemZ/Disassembler/SystemZDisassembler.cpp
@@ -34,7 +34,6 @@ public:
 
   DecodeStatus getInstruction(MCInst &instr, uint64_t &Size,
                               ArrayRef<uint8_t> Bytes, uint64_t Address,
-                              raw_ostream &VStream,
                               raw_ostream &CStream) const override;
 };
 
@@ -449,7 +448,6 @@ static DecodeStatus decodeBDVAddr64Disp12Operand(MCInst &Inst, uint64_t Field,
 DecodeStatus SystemZDisassembler::getInstruction(MCInst &MI, uint64_t &Size,
                                                  ArrayRef<uint8_t> Bytes,
                                                  uint64_t Address,
-                                                 raw_ostream &OS,
                                                  raw_ostream &CS) const {
   // Get the first two bytes of the instruction.
   Size = 0;