It is not an error to remove a non-existant (key,value) pair
@returns
- NOTMUCH_STATUS_ILLEGAL_ARGUMENT: *key* may not contain an '=' character.
- NOTMUCH_STATUS_NULL_POINTER: Neither *key* nor *value* may be NULL.
- NOTMUCH_STATUS_SUCCESS: No error occured.
@since libnotmuch 4.4 (notmuch 0.23)
Remove a (key,value) pair from a message.
It is not an error to remove a non-existant (key,value) pair
@returns - NOTMUCH_STATUS_ILLEGAL_ARGUMENT: *key* may not contain an '=' character. - NOTMUCH_STATUS_NULL_POINTER: Neither *key* nor *value* may be NULL. - NOTMUCH_STATUS_SUCCESS: No error occured. @since libnotmuch 4.4 (notmuch 0.23)