diff --git a/src/coreclr/src/tools/Common/Compiler/ReadyToRun.cs b/src/coreclr/src/tools/Common/Compiler/ReadyToRun.cs
deleted file mode 100644
index 034136734d1097a3104745c7501a647e66eaee67..0000000000000000000000000000000000000000
--- a/src/coreclr/src/tools/Common/Compiler/ReadyToRun.cs
+++ /dev/null
@@ -1,195 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-//
-// Keep in sync with https://github.com/dotnet/coreclr/blob/master/src/inc/readytorun.h
-//
-
-namespace ILCompiler
-{
-    //
-    // Intrinsics and helpers
-    //
-
-    public enum ReadyToRunHelper
-    {
-        Invalid                     = 0x00,
-
-        // Not a real helper - handle to current module passed to delay load helpers.
-        Module                      = 0x01,
-        GSCookie                    = 0x02,
-
-        //
-        // Delay load helpers
-        //
-
-        // All delay load helpers use custom calling convention:
-        // - scratch register - address of indirection cell. 0 = address is inferred from callsite.
-        // - stack - section index, module handle
-        DelayLoad_MethodCall        = 0x08,
-
-        DelayLoad_Helper            = 0x10,
-        DelayLoad_Helper_Obj        = 0x11,
-        DelayLoad_Helper_ObjObj     = 0x12,
-
-        // Exception handling helpers
-        Throw                       = 0x20,
-        Rethrow                     = 0x21,
-        Overflow                    = 0x22,
-        RngChkFail                  = 0x23,
-        FailFast                    = 0x24,
-        ThrowNullRef                = 0x25,
-        ThrowDivZero                = 0x26,
-
-        // Write barriers
-        WriteBarrier                = 0x30,
-        CheckedWriteBarrier         = 0x31,
-        ByRefWriteBarrier           = 0x32,
-
-        // Array helpers
-        Stelem_Ref                  = 0x38,
-        Ldelema_Ref                 = 0x39,
-
-        MemSet                      = 0x40,
-        MemCpy                      = 0x41,
-
-        // P/Invoke support
-        PInvokeBegin                = 0x42,
-        PInvokeEnd                  = 0x43,
-
-        // Get string handle lazily
-        GetString                   = 0x50,
-
-        // Used by /Tuning for Profile optimizations
-        LogMethodEnter = 0x51,
-
-        // Reflection helpers
-        GetRuntimeTypeHandle        = 0x54,
-        GetRuntimeMethodHandle      = 0x55,
-        GetRuntimeFieldHandle       = 0x56,
-
-        Box                         = 0x58,
-        Box_Nullable                = 0x59,
-        Unbox                       = 0x5A,
-        Unbox_Nullable              = 0x5B,
-        NewMultiDimArr              = 0x5C,
-        NewMultiDimArr_NonVarArg    = 0x5D,
-
-        // Helpers used with generic handle lookup cases
-        NewObject                   = 0x60,
-        NewArray                    = 0x61,
-        CheckCastAny                = 0x62,
-        CheckInstanceAny            = 0x63,
-        GenericGcStaticBase         = 0x64,
-        GenericNonGcStaticBase      = 0x65,
-        GenericGcTlsBase            = 0x66,
-        GenericNonGcTlsBase         = 0x67,
-        VirtualFuncPtr              = 0x68,
-
-        // Long mul/div/shift ops
-        LMul                        = 0xC0,
-        LMulOfv                     = 0xC1,
-        ULMulOvf                    = 0xC2,
-        LDiv                        = 0xC3,
-        LMod                        = 0xC4,
-        ULDiv                       = 0xC5,
-        ULMod                       = 0xC6,
-        LLsh                        = 0xC7,
-        LRsh                        = 0xC8,
-        LRsz                        = 0xC9,
-        Lng2Dbl                     = 0xCA,
-        ULng2Dbl                    = 0xCB,
-
-        // 32-bit division helpers
-        Div                         = 0xCC,
-        Mod                         = 0xCD,
-        UDiv                        = 0xCE,
-        UMod                        = 0xCF,
-
-        // Floating point conversions
-        Dbl2Int                     = 0xD0,
-        Dbl2IntOvf                  = 0xD1,
-        Dbl2Lng                     = 0xD2,
-        Dbl2LngOvf                  = 0xD3,
-        Dbl2UInt                    = 0xD4,
-        Dbl2UIntOvf                 = 0xD5,
-        Dbl2ULng                    = 0xD6,
-        Dbl2ULngOvf                 = 0xD7,
-
-        // Floating point ops
-        DblRem                      = 0xE0,
-        FltRem                      = 0xE1,
-        DblRound                    = 0xE2,
-        FltRound                    = 0xE3,
-
-        // Personality rountines
-        PersonalityRoutine          = 0xF0,
-        PersonalityRoutineFilterFunclet = 0xF1,
-
-        // Synchronized methods
-        MonitorEnter                = 0xF8,
-        MonitorExit                 = 0xF9,
-
-        // JIT32 x86-specific write barriers
-        WriteBarrier_EAX            = 0x100,
-        WriteBarrier_EBX            = 0x101,
-        WriteBarrier_ECX            = 0x102,
-        WriteBarrier_ESI            = 0x103,
-        WriteBarrier_EDI            = 0x104,
-        WriteBarrier_EBP            = 0x105,
-        CheckedWriteBarrier_EAX     = 0x106,
-        CheckedWriteBarrier_EBX     = 0x107,
-        CheckedWriteBarrier_ECX     = 0x108,
-        CheckedWriteBarrier_ESI     = 0x109,
-        CheckedWriteBarrier_EDI     = 0x10A,
-        CheckedWriteBarrier_EBP     = 0x10B,
-
-        // JIT32 x86-specific exception handling
-        EndCatch                    = 0x110,
-
-        StackProbe                  = 0x111,
-
-        // **********************************************************************************************
-        //
-        // These are not actually part of the R2R file format. We have them here because it's convenient.
-        //
-        // **********************************************************************************************
-
-        // Marker to be used in asserts.
-        FirstFakeHelper,
-
-        ThrowArgumentOutOfRange,
-        ThrowArgument,
-        ThrowPlatformNotSupported,
-        ThrowNotImplemented,
-
-        DebugBreak,
-
-        GetRuntimeType,
-
-        AreTypesEquivalent,
-
-        CheckCastClass,
-        CheckInstanceClass,
-        CheckCastArray,
-        CheckInstanceArray,
-        CheckCastInterface,
-        CheckInstanceInterface,
-
-        // P/Invoke support
-        ReversePInvokeEnter,
-        ReversePInvokeExit,
-
-        MonitorEnterStatic,
-        MonitorExitStatic,
-
-        // GVM lookup helper
-        GVMLookupForSlot,
-
-        // TypedReference
-        TypeHandleToRuntimeType,
-        GetRefAny,
-        TypeHandleToRuntimeTypeHandle,
-    }
-}