Remove 3box feature and delete ThreeBoxController

.iyarc

@@ -1,5 +1,2 @@
 # improved-yarn-audit advisory exclusions
-GHSA-93q8-gq69-wqmw
 GHSA-257v-vj4p-3w2h
-GHSA-wm7h-9275-46v2
-GHSA-pfrx-2q88-qq97

.storybook/test-data.js

@@ -1383,12 +1383,6 @@ const state = {
         },
       },
     },
-    threeBoxSyncingAllowed: false,
-    showRestorePrompt: true,
-    threeBoxLastUpdated: 0,
-    threeBoxAddress: null,
-    threeBoxSynced: false,
-    threeBoxDisabled: false,
     swapsState: {
       quotes: {},
       fetchParams: null,
@@ -1479,8 +1473,6 @@ const state = {
     },
     networksTabSelectedRpcUrl: '',
     loadingMethodData: false,
-    show3BoxModalAfterImport: false,
-    threeBoxLastUpdated: null,
     requestAccountTabs: {},
     openMetaMaskTabs: {},
     currentWindowTab: {},