[x64] Remove extra SSSE3 scope

Bug: v8:11074
Change-Id: I343ad420a2fcbabf6493d657cd93c1b40d76fd3c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2644547Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72442}

src/compiler/backend/x64/code-generator-x64.cc

@@ -2143,7 +2143,6 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
       break;
     }
     case kX64Movdqu: {
-      CpuFeatureScope sse_scope(tasm(), SSSE3);
       EmitOOLTrapIfNeeded(zone(), this, opcode, instr, __ pc_offset());
       if (instr->HasOutput()) {
         __ Movdqu(i.OutputSimd128Register(), i.MemoryOperand());