Redmine

Grep returns nothing.
But I see this permission in settings.

Environment:
  Redmine version                3.4.3.stable.17016
  Ruby version                   2.3.5-p376 (2017-09-14) [i686-linux]
  Rails version                  4.2.8
  Environment                    production
  Database adapter               Mysql2
SCM:
  Subversion                     1.8.8
  Git                            1.7.1
  Filesystem                     
Redmine plugins:
  advanced_roadmap_v2            2.4.3
  redmine_agile                  1.4.6
  redmine_checklists             3.1.11
  redmine_lightbox2              0.4.3
  redmine_scm_path_view          0.0.2
  redmine_timesheet_plugin       0.7.0
  redmine_xls_export             0.2.1.t10

I think the "View estimated hours" permission has been added by advanced_roadmap_v2 plugin. Please contact the author of the plugin.

This is an evidence that the plugin adds the permission.
https://github.com/Coren/redmine_advanced_roadmap_v2/blob/18b8c5ca8eb90f5ffef9a1874794818b5d6c870a/config/locales/en.yml#L22