Add `metadata_delete_search_terms` method to delete search terms in history metadata#7101

mhammond merged 2 commits intomozilla:mainmozilla/application-services:mainfrom

cyndichin:feat/add-delete-search-terms-method-in-history-metadatacyndichin/application-services:feat/add-delete-search-terms-method-in-history-metadataCopy head branch name to clipboard