Update test

Author: Chengjunp

llvm/test/Analysis/NVPTXAA/NVPTXAA_before_BasicAA.ll

@@ -1,7 +1,4 @@
 ; RUN: opt -aa-pipeline=default -passes='require<aa>' -debug-pass-manager -disable-output -S < %s 2>&1 | FileCheck %s
-; RUN: opt -O2 -debug-aa -disable-output -S < %s 2>&1 | FileCheck %s --check-prefix=LEGACY
-; LEGACY: NVPTX AA
-; LEGACY-NEXT: Basic Alias Analysis (stateless AA impl)
 
 ; In default AA pipeline, NVPTXAA should run before BasicAA to reduce compile time for NVPTX backend
 target triple = "nvptx64-nvidia-cuda"