Fix some silly linting issues.

app/scripts/lib/tx-gas-utils.js

@@ -26,7 +26,7 @@ module.exports = class txProvideUtil {
         err.message.includes('Transaction execution error.') ||
         err.message.includes('gas required exceeds allowance or always failing transaction')
       )
-      if ( simulationFailed ) {
+      if (simulationFailed) {
         txMeta.simulationFails = true
         return txMeta
       }

app/scripts/notice-controller.js

@@ -77,7 +77,7 @@ module.exports = class NoticeController extends EventEmitter {
     return uniqBy(oldNotices.concat(newNotices), 'id')
   }
 
-  _filterNotices(notices) {
+  _filterNotices (notices) {
     return notices.filter((newNotice) => {
       if ('version' in newNotice) {
         const satisfied = semver.satisfies(this.version, newNotice.version)