video_core/textures: Remove unused index entry in FullTextureInfo

src/video_core/engines/maxwell_3d.cpp

@@ -763,7 +763,6 @@ Texture::TSCEntry Maxwell3D::GetTSCEntry(u32 tsc_index) const {
 Texture::FullTextureInfo Maxwell3D::GetTextureInfo(const Texture::TextureHandle tex_handle,
                                                    std::size_t offset) const {
     Texture::FullTextureInfo tex_info{};
-    tex_info.index = static_cast<u32>(offset);
 
     // Load the TIC data.
     auto tic_entry = GetTICEntry(tex_handle.tic_id);

src/video_core/textures/texture.h

@@ -354,7 +354,6 @@ struct TSCEntry {
 static_assert(sizeof(TSCEntry) == 0x20, "TSCEntry has wrong size");
 
 struct FullTextureInfo {
-    u32 index;
     TICEntry tic;
     TSCEntry tsc;
 };