reduce dependencies for coreutils-single
    
    Don't depend on libcrypto from the multicall binary in
    the coreutils-single package, because that trades space for speed.
    
    Don't depend on libgmp from the multicall binary in
    the coreutils-single package, because that only benefits
    factor and expr.  The large size of gmp is not seen as
    an appropriate tradeoff for this functionality.
    
    Note also there is reduced startup overhead for all tools
    with these removed due to not linking with the shared libs.