Cleaning up leveldown references

- commented out code from ledger
- stubs used in unit testing
- electron builder hack (no longer needed)

Auditors: @diracdeltas

app/ledger.js

@@ -1862,35 +1862,6 @@ var run = (delayTime) => {
   console.log('what? wait, how can this happen?')
 }
 
-/*
- * ledger client utilities
- */
-
-/* code that may never be needed...
-
-var rulesV2Reset = (callback) => {
-  if (clientOptions.verboseP) console.log('\n\nreset rulesets')
-  if (!v2RulesetDB) return
-
-  if (client) {
-    delete client.state.rulesV2Stamp
-    client.state.updatesStamp = underscore.now()
-  }
-  v2RulesetDB.close((err) => {
-    if (err) console.log(v2RulesetPath + ' close error: ' + err.toString())
-
-    v2RulesetDB = null
-    require('leveldown').destroy(pathName(v2RulesetPath), (err) => {
-      if (err) console.log(v2RulesetPath + ' destroy error: ' + err.toString())
-
-      v2RulesetDB = levelup(pathName(v2RulesetPath))
-      callback()
-    })
-  })
-}
-
-*/
-
 var getStateInfo = (state) => {
   var ballots, i, transaction
   var info = state.paymentInfo

test/unit/app/browser/reducers/tabsReducerTest.js

@@ -89,7 +89,6 @@ describe('tabsReducer unit tests', function () {
     })
     mockery.registerMock('electron', fakeElectron)
     mockery.registerMock('ad-block', fakeAdBlock)
-    mockery.registerMock('leveldown', {})
 
     this.tabsAPI = {
       isDevToolsFocused: (tabId) => {

test/unit/app/browser/tabsTest.js

@@ -65,7 +65,6 @@ describe('tabs API unit tests', function () {
 
     mockery.registerMock('electron', fakeElectron)
     mockery.registerMock('ad-block', fakeAdBlock)
-    mockery.registerMock('leveldown', {})
     mockery.registerMock('../../js/stores/appStore', this.appStore)
     mockery.registerMock('../filtering', {
       isResourceEnabled: (resourceName, url, isPrivate) => false

tools/electronBuilderHack.js

@@ -15,15 +15,6 @@ const rebuildCmd = '"../.bin/node-gyp" rebuild'
 const isDarwin = process.platform === 'darwin'
 
 const cmds = []
-if (process.env.TARGET_ARCH === 'ia32') {
-  cmds.push(
-    'cp .npmrc ./node_modules/leveldown',
-    'cd ./node_modules/leveldown',
-    // leveldown prebuild isn't respecting the npm_config_arch env
-    // for some reason, so always compile it.
-    'npm run rebuild'
-  )
-}
 
 if (isDarwin) {
   cmds.push(

tools/lib/ignoredPaths.js

@@ -21,7 +21,6 @@ module.exports = [
   'Release/obj',
   'obj.target',
   'ad-block/(node_modules|test|perf|sample|scripts|test|vendor|ABPFilterParserData.dat)',
-  'leveldown/(node_modules|src|iojs)',
   'tracking-protection/(node_modules|test|data|scripts|vendor)',
   'tracking-protection/build/node_modules',
   'tracking-protection/build/Release/(sample.exe|test.exe)',