Rollup merge of #73436 - GuillaumeGomez:cleanup-e0670, r=Dylan-DPC
Rollup merge of #73436 - GuillaumeGomez:cleanup-e0670, r=Dylan-DPC

Clean up E0670 explanation

r? @Dylan-DPC

graydon/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust