common: remove WriteFile and ReadAllFile (use ioutil instead)

cmd/mist/bindings.go

@@ -22,13 +22,14 @@ package main
 
 import (
 	"encoding/json"
+	"io/ioutil"
 	"os"
 	"strconv"
 
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/types"
 )
 
 type plugin struct {
@@ -46,14 +47,14 @@ func (self *Gui) AddPlugin(pluginPath string) {
 	self.plugins[pluginPath] = plugin{Name: pluginPath, Path: pluginPath}
 
 	json, _ := json.MarshalIndent(self.plugins, "", "    ")
-	common.WriteFile(self.eth.DataDir+"/plugins.json", json)
+	ioutil.WriteFile(self.eth.DataDir+"/plugins.json", json, os.ModePerm)
 }
 
 func (self *Gui) RemovePlugin(pluginPath string) {
 	delete(self.plugins, pluginPath)
 
 	json, _ := json.MarshalIndent(self.plugins, "", "    ")
-	common.WriteFile(self.eth.DataDir+"/plugins.json", json)
+	ioutil.WriteFile(self.eth.DataDir+"/plugins.json", json, os.ModePerm)
 }
 
 func (self *Gui) DumpState(hash, path string) {

cmd/mist/gui.go

@@ -25,6 +25,7 @@ import "C"
 import (
 	"encoding/json"
 	"fmt"
+	"io/ioutil"
 	"math/big"
 	"path"
 	"runtime"
@@ -91,8 +92,8 @@ func NewWindow(ethereum *eth.Ethereum) *Gui {
 		plugins:       make(map[string]plugin),
 		serviceEvents: make(chan ServEv, 1),
 	}
-	data, _ := common.ReadAllFile(path.Join(ethereum.DataDir, "plugins.json"))
-	json.Unmarshal([]byte(data), &gui.plugins)
+	data, _ := ioutil.ReadFile(path.Join(ethereum.DataDir, "plugins.json"))
+	json.Unmarshal(data, &gui.plugins)
 
 	return gui
 }