Remove unused attributes from move-dbg-values-imm-test.mir

[rastogishubham]

Summary

https://reviews.llvm.org/D145168 added a change to salvaging debug information in the pre register allocatoin ld/st pass. One of the tests associated with that patch has attributes that are not necessary for the test and have been removed with this change

llvm/test/DebugInfo/ARM/move-dbg-values-imm-test.mir

 # RUN: llc -O2 %s -start-after=arm-mve-vpt-opts -stop-after=arm-prera-ldst-opt -o -  | FileCheck %s
 # CHECK: DBG_VALUE 13, $noreg, !11, !DIExpression(), debug-location !13
 
 
 # This test checks to make sure that a DBG_VALUE that uses an immediate doesn't get zero-ed out by a DBG_VALUE that comes later in the basic block, and describes the same variable.
 
 --- |
   ; ModuleID = '/Users/shubham/Development/llvm-project/llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll'
   source_filename = "/Users/shubham/Development/llvm-project/llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll"
   target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
   target triple = "armv8-unknown-linux"
   
   ; Function Attrs: uwtable
-  define i32 @main() #0 !dbg !6 {
+  define i32 @main() !dbg !6 {
   entry:
     %c = alloca i32, align 4
     tail call void @llvm.dbg.value(metadata i32 13, metadata !11, metadata !DIExpression()), !dbg !13
     store volatile i32 13, ptr %c, align 4, !dbg !14
     %call = tail call i32 @_Z4funcv(), !dbg !15
     tail call void @llvm.dbg.value(metadata i32 %call, metadata !11, metadata !DIExpression()), !dbg !13
     store volatile i32 %call, ptr %c, align 4, !dbg !15
     tail call void @llvm.dbg.value(metadata ptr %c, metadata !11, metadata !DIExpression(DW_OP_deref)), !dbg !13
     %c.0.c.0. = load volatile i32, ptr %c, align 4, !dbg !16
     ret i32 %c.0.c.0., !dbg !16
   }
   
-  declare i32 @_Z4funcv() #1
+  declare i32 @_Z4funcv()
   
-  ; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
-  declare void @llvm.dbg.value(metadata, metadata, metadata) #2
-  
-  attributes #0 = { uwtable "frame-pointer"="none" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
-  attributes #1 = { "frame-pointer"="none" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
-  attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
+  declare void @llvm.dbg.value(metadata, metadata, metadata)
   
   !llvm.dbg.cu = !{!0}
   !llvm.module.flags = !{!3, !4}
   !llvm.ident = !{!5}
   
   !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.6.0 (trunk 223522)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
   !1 = !DIFile(filename: "test.cpp", directory: "/home/kromanova/ngh/ToT_latest/llvm/test/DebugInfo")
   !2 = !{}