Do not need the gpu.js, may I simply comment the var gpu_js?

[stramacek]

Hi,
due to the tons of dependencies and simplicity of my neural network, I want to get rid of the gpu.js dependency. I tried to simply comment the var gpu_js=require(gpu.js) and it seems to work well. However, keeping dependencies without it is quite inconvenient. Is there a way to have pure Brain.js without the gpu.js at all?