field_attach_delete_revision() is named the wrong way round, consider renaming it.

Problem/Motivation

field_attach_delete_revision() doesn't follow the general naming pattern what introduces some odd extra code to deal with: http://drupalcode.org/project/drupal.git/blob/d6075b5f91bfc805cfa4922201...

Proposed resolution

Rename the function.

Remaining tasks

User interface changes

none

API changes

field_attach_delete_revision() will be replaced by field_attach_revision_delete()