Check for unused function arguments (#6583)

* eslint: Check for unused function arguments

* eslint: Ignore unused '_' in argument list

Also allow any number of '_' e.g., '__' or '___' which is to be used sparingly

* Remove and rename unused arguments

2 files changed, 2 insertions, 2 deletions

diff --git a/app/scripts/migrations/024.js b/app/scripts/migrations/024.js
index d0b276a79..6239bab13 100644
--- a/app/scripts/migrations/024.js
+++ b/app/scripts/migrations/024.js
@@ -27,7 +27,7 @@ function transformState (state) {
   const newState = state
   if (!newState.TransactionController) return newState
   const transactions = newState.TransactionController.transactions
-  newState.TransactionController.transactions = transactions.map((txMeta, _, txList) => {
+  newState.TransactionController.transactions = transactions.map((txMeta, _) => {
     if (
       txMeta.status === 'unapproved' &&
       txMeta.txParams &&
diff --git a/app/scripts/migrations/025.js b/app/scripts/migrations/025.js
index fc3b20a44..fd4faa782 100644
--- a/app/scripts/migrations/025.js
+++ b/app/scripts/migrations/025.js
@@ -43,7 +43,7 @@ function normalizeTxParams (txParams) {
   // functions that handle normalizing of that key in txParams
   const whiteList = {
     from: from => ethUtil.addHexPrefix(from).toLowerCase(),
-    to: to => ethUtil.addHexPrefix(txParams.to).toLowerCase(),
+    to: () => ethUtil.addHexPrefix(txParams.to).toLowerCase(),
     nonce: nonce => ethUtil.addHexPrefix(nonce),
     value: value => ethUtil.addHexPrefix(value),
     data: data => ethUtil.addHexPrefix(data),