This also removes binding an EGL surface to a 3D texture image, which
is not supported by the API and which is unreachable.

Change-Id: I4a6cd17d731c28769e976b21ac46fe855d1c7b1c
Reviewed-on: https://swiftshader-review.googlesource.com/8351Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>