Delete unused `UNLOCK_METAMASK` action (#8307)

This action was never triggered in practice, as MetaMask is never
unlocked from the UI. The unlock always occurs as a result of a
background state update.

test/unit/reducers/unlock_vault_test.js

@@ -1,35 +0,0 @@
-import assert from 'assert'
-import * as actions from '../../../ui/app/store/actions'
-import reducers from '../../../ui/app/ducks'
-
-describe('#unlockMetamask(selectedAccount)', function () {
-  describe('after an error', function () {
-    it('clears warning', function () {
-      const warning = 'this is the wrong warning'
-      const account = 'foo_account'
-      const initialState = {
-        appState: {
-          warning: warning,
-        },
-      }
-
-      const resultState = reducers(initialState, actions.unlockMetamask(account))
-      assert.equal(resultState.appState.warning, null, 'warning nullified')
-    })
-  })
-
-  describe('going home after an error', function () {
-    it('clears warning', function () {
-      const warning = 'this is the wrong warning'
-      // const account = 'foo_account'
-      const initialState = {
-        appState: {
-          warning: warning,
-        },
-      }
-
-      const resultState = reducers(initialState, actions.goHome())
-      assert.equal(resultState.appState.warning, null, 'warning nullified')
-    })
-  })
-})

test/unit/ui/app/reducers/app.spec.js

@@ -144,17 +144,6 @@ describe('App State', function () {
     assert.equal(state.warning, null)
   })
 
-  it('unlocks Metamask', function () {
-    const state = reduceApp(metamaskState, {
-      type: actions.UNLOCK_METAMASK,
-    })
-
-    assert.equal(state.forgottenPassword, null)
-    assert.deepEqual(state.detailView, {})
-    assert.equal(state.transForward, true)
-    assert.equal(state.warning, null)
-  })
-
   it('locks Metamask', function () {
     const state = reduceApp(metamaskState, {
       type: actions.LOCK_METAMASK,

test/unit/ui/app/reducers/metamask.spec.js

@@ -9,17 +9,6 @@ describe('MetaMask Reducers', function () {
     assert(initState)
   })
 
-  it('unlocks MetaMask', function () {
-    const state = reduceMetamask({}, {
-      type: actions.UNLOCK_METAMASK,
-      value: 'test address',
-    })
-
-    assert.equal(state.isUnlocked, true)
-    assert.equal(state.isInitialized, true)
-    assert.equal(state.selectedAddress, 'test address')
-  })
-
   it('locks MetaMask', function () {
     const unlockMetaMaskState = {
       isUnlocked: true,

ui/app/ducks/app/app.js

@@ -159,18 +159,6 @@ export default function reduceApp (state = {}, action) {
         warning: null,
       }
 
-      // unlock
-
-    case actions.UNLOCK_METAMASK:
-      return {
-        ...appState,
-        forgottenPassword: appState.forgottenPassword ? !appState.forgottenPassword : null,
-        detailView: {},
-        transForward: true,
-        isLoading: false,
-        warning: null,
-      }
-
     case actions.LOCK_METAMASK:
       return {
         ...appState,

ui/app/ducks/metamask/metamask.js

@@ -56,14 +56,6 @@ export default function reduceMetamask (state = {}, action) {
     case actions.UPDATE_METAMASK_STATE:
       return { ...metamaskState, ...action.value }
 
-    case actions.UNLOCK_METAMASK:
-      return {
-        ...metamaskState,
-        isUnlocked: true,
-        isInitialized: true,
-        selectedAddress: action.value,
-      }
-
     case actions.LOCK_METAMASK:
       return {
         ...metamaskState,

ui/app/store/actions.js

@@ -42,7 +42,6 @@ export const actionConstants = {
   UNLOCK_IN_PROGRESS: 'UNLOCK_IN_PROGRESS',
   UNLOCK_FAILED: 'UNLOCK_FAILED',
   UNLOCK_SUCCEEDED: 'UNLOCK_SUCCEEDED',
-  UNLOCK_METAMASK: 'UNLOCK_METAMASK',
   LOCK_METAMASK: 'LOCK_METAMASK',
   // error handling
   DISPLAY_WARNING: 'DISPLAY_WARNING',
@@ -1260,13 +1259,6 @@ export function unlockSucceeded (message) {
   }
 }
 
-export function unlockMetamask (account) {
-  return {
-    type: actionConstants.UNLOCK_METAMASK,
-    value: account,
-  }
-}
-
 export function updateMetamaskState (newState) {
   return {
     type: actionConstants.UPDATE_METAMASK_STATE,