addresses C4101 warnings ('identifier' : unreferenced local variable)

Engine/source/gfx/D3D11/gfxD3D11Shader.cpp

@@ -609,7 +609,6 @@ void GFXD3D11ShaderConstBuffer::activate( GFXD3D11ShaderConstBuffer *prevShaderB
    ZeroMemory(&pConstData, sizeof(D3D11_MAPPED_SUBRESOURCE));
    
    const U8* buf;
-   HRESULT hr;
    U32 nbBuffers = 0;
    if(mVertexConstBuffer->isDirty())
    {

Engine/source/gui/controls/guiAnimBitmapCtrl.cpp

@@ -124,7 +124,6 @@ bool guiAnimBitmapCtrl::ptSetFrame(void *object, const char *index, const char *
    }
 
    S32 val = dAtoi(data);
-   U32 i;
 
    if (val < 0)
    {