Remove useless and buggy clearWallet function

app/scripts/lib/config-manager.js

@@ -149,8 +149,6 @@ ConfigManager.prototype.getCurrentRpcAddress = function () {
   }
 }
 
-ConfigManager.prototype.clearWallet = function () {}
-
 ConfigManager.prototype.setData = function (data) {
   this.migrator.saveData(data)
 }

app/scripts/lib/idStore.js

@@ -43,9 +43,6 @@ function IdentityStore (opts = {}) {
 
 IdentityStore.prototype.createNewVault = function (password, entropy, cb) {
   delete this._keyStore
-  if (this.configManager) {
-    this.configManager.clearWallet()
-  }
 
   this._createIdmgmt(password, null, entropy, (err) => {
     if (err) return cb(err)

test/unit/config-manager-test.js

@@ -42,17 +42,6 @@ describe('config-manager', function() {
     })
   })
 
-  describe('#clearWallet', function() {
-    it('should not erase confirmation', function() {
-      configManager.setConfirmed(true)
-      assert.equal(configManager.getConfirmed(), true)
-
-      configManager.clearWallet()
-
-      assert.equal(configManager.getConfirmed(), true)
-    })
-  })
-
   describe('#setConfig', function() {
     window.localStorage = {} // Hacking localStorage support into JSDom