zink: don't export PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS
gallium automatically sums up the per-stage buffers if this isn't set, and some drivers (e.g., amdvlk) export UINT_MAX here which breaks the universe
gallium automatically sums up the per-stage buffers if this isn't set, and some drivers (e.g., amdvlk) export UINT_MAX here which breaks the universe