Delete outdated (but awesome) ASCII diagram
Delete outdated (but awesome) ASCII diagram

ehartsuyker/securedrop,ehartsuyker/securedrop,micahflee/securedrop,ageis/securedrop,ehartsuyker/securedrop,ageis/securedrop,heartsucker/securedrop,conorsch/securedrop,ehartsuyker/securedrop,ehartsuyker/securedrop,heartsucker/securedrop,micahflee/securedrop,conorsch/securedrop,pwplus/securedrop,conorsch/securedrop,garrettr/securedrop,heartsucker/securedrop,micahflee/securedrop,micahflee/securedrop,pwplus/securedrop,ageis/securedrop,garrettr/securedrop,garrettr/securedrop,heartsucker/securedrop,conorsch/securedrop,garrettr/securedrop,ehartsuyker/securedrop,pwplus/securedrop,ageis/securedrop,pwplus/securedrop,heartsucker/securedrop,conorsch/securedrop,pwplus/securedrop,pwplus/securedrop