Stop to save specs for builtin procs
Stop to save specs for builtin procs

Because they aren't used.

groonga/groonga,komainu8/groonga,groonga/groonga,cosmo0920/groonga,komainu8/groonga,kenhys/groonga,groonga/groonga,groonga/groonga,komainu8/groonga,komainu8/groonga,kenhys/groonga,kenhys/groonga,komainu8/groonga,naoa/groonga,komainu8/groonga,naoa/groonga,naoa/groonga,cosmo0920/groonga,naoa/groonga,naoa/groonga,cosmo0920/groonga,groonga/groonga,kenhys/groonga,cosmo0920/groonga,naoa/groonga,kenhys/groonga,kenhys/groonga,cosmo0920/groonga,naoa/groonga,cosmo0920/groonga,cosmo0920/groonga,groonga/groonga,groonga/groonga,komainu8/groonga,groonga/groonga,komainu8/groonga,kenhys/groonga,cosmo0920/groonga,naoa/groonga,kenhys/groonga