remove unused client/config package

Signed-off-by: Leo Chen <leo@harmony.one>

client/config/config.go

@@ -1,101 +0,0 @@
-package config
-
-import (
-	"bufio"
-	"log"
-	"os"
-	"strconv"
-	"strings"
-
-	"github.com/harmony-one/harmony/p2p"
-)
-
-// Entry is a single config of a node.
-type Entry struct {
-	IP      string
-	Port    string
-	Role    string
-	ShardID string
-}
-
-// Config is a struct containing multiple Entry of all nodes.
-type Config struct {
-	config []Entry
-}
-
-// NewConfig returns a pointer to a Config.
-func NewConfig() *Config {
-	config := Config{}
-	return &config
-}
-
-// GetValidators returns all the validator peers
-func (config *Config) GetValidators() []p2p.Peer {
-	var peerList []p2p.Peer
-	for _, entry := range config.config {
-		if entry.Role != "validator" {
-			continue
-		}
-		peer := p2p.Peer{Port: entry.Port, IP: entry.IP}
-		peerList = append(peerList, peer)
-	}
-	return peerList
-}
-
-// GetShardIDToLeaderMap returns all the leader peers and corresponding shard Ids
-func (config *Config) GetShardIDToLeaderMap() map[uint32]p2p.Peer {
-	shardIDLeaderMap := map[uint32]p2p.Peer{}
-	for _, entry := range config.config {
-		if entry.Role == "leader" {
-			val, err := strconv.Atoi(entry.ShardID)
-			if err == nil {
-				shardIDLeaderMap[uint32(val)] = p2p.Peer{IP: entry.IP, Port: entry.Port}
-			} else {
-				log.Print("[Generator] Error parsing the shard Id ", entry.ShardID)
-			}
-		}
-	}
-	return shardIDLeaderMap
-}
-
-// GetClientPeer returns the client peer.
-func (config *Config) GetClientPeer() *p2p.Peer {
-	for _, entry := range config.config {
-		if entry.Role != "client" {
-			continue
-		}
-		peer := p2p.Peer{Port: entry.Port, IP: entry.IP}
-		return &peer
-	}
-	return nil
-}
-
-// GetClientPort returns the port of the client node in the config
-func (config *Config) GetClientPort() string {
-	for _, entry := range config.config {
-		if entry.Role == "client" {
-			return entry.Port
-		}
-	}
-	return ""
-}
-
-// ReadConfigFile parses the config file and return a 2d array containing the file data
-func (config *Config) ReadConfigFile(filename string) error {
-	file, err := os.Open(filename)
-	if err != nil {
-		log.Fatal("Failed to read config file ", filename)
-		return err
-	}
-	defer file.Close()
-	fscanner := bufio.NewScanner(file)
-
-	result := []Entry{}
-	for fscanner.Scan() {
-		p := strings.Split(fscanner.Text(), " ")
-		entry := Entry{p[0], p[1], p[2], p[3]}
-		result = append(result, entry)
-	}
-	config.config = result
-	return nil
-}