Revert "Adds 4byte registry fallback to getMethodData() (#6435)"

This reverts commit 09f2a2a5476c4c119c7294f496f6590156d8d07a.

2 files changed, 4 insertions, 28 deletions

diff --git a/ui/app/helpers/utils/transactions.util.js b/ui/app/helpers/utils/transactions.util.js
index 8d96b1487..cb6c9536c 100644
--- a/ui/app/helpers/utils/transactions.util.js
+++ b/ui/app/helpers/utils/transactions.util.js
@@ -30,21 +30,6 @@ export function getTokenData (data = '') {
   return abiDecoder.decodeMethod(data)
 }
 
-async function getMethodFrom4Byte (fourBytePrefix) {
-  const fourByteResponse = (await fetch(`https://www.4byte.directory/api/v1/signatures/?hex_signature=${fourBytePrefix}`, {
-    referrerPolicy: 'no-referrer-when-downgrade',
-    body: null,
-    method: 'GET',
-    mode: 'cors',
-  })).json()
-
-  if (fourByteResponse.count === 1) {
-    return fourByteResponse.results[0].text_signature
-  } else {
-    return null
-  }
-}
-
 const registry = new MethodRegistry({ provider: global.ethereumProvider })
 
 /**
@@ -58,16 +43,7 @@ const registry = new MethodRegistry({ provider: global.ethereumProvider })
     const fourBytePrefix = prefixedData.slice(0, 10)
 
     try {
-      const fourByteSig = getMethodFrom4Byte(fourBytePrefix).catch((e) => {
-          log.error(e)
-          return null
-      })
-
-      let sig = await registry.lookup(fourBytePrefix)
-
-      if (!sig) {
-        sig = await fourByteSig
-      }
+      const sig = await registry.lookup(fourBytePrefix)
 
       if (!sig) {
         return {}
@@ -81,8 +57,8 @@ const registry = new MethodRegistry({ provider: global.ethereumProvider })
       }
     } catch (error) {
       log.error(error)
-      const tokenData = getTokenData(data)
-      const { name } = tokenData || {}
+      const contractData = getTokenData(data)
+      const { name } = contractData || {}
       return { name }
     }
 
diff --git a/ui/app/pages/confirm-transaction-base/confirm-transaction-base.component.js b/ui/app/pages/confirm-transaction-base/confirm-transaction-base.component.js
index be819b5f0..1cbe5951d 100644
--- a/ui/app/pages/confirm-transaction-base/confirm-transaction-base.component.js
+++ b/ui/app/pages/confirm-transaction-base/confirm-transaction-base.component.js
@@ -543,7 +543,7 @@ export default class ConfirmTransactionBase extends Component {
         toName={toName}
         toAddress={toAddress}
         showEdit={onEdit && !isTxReprice}
-        action={actionKey && this.context.t(actionKey) || getMethodName(name) || this.context.t('contractInteraction')}
+        action={this.context.t(actionKey) || getMethodName(name) || this.context.t('contractInteraction')}
         title={title}
         titleComponent={this.renderTitleComponent()}
         subtitle={subtitle}