Revert "AccessControl: Implement a way to register fixed roles (#35641)" (#37397)

This reverts commit 88c11f1cc0.

pkg/services/accesscontrol/models.go

@@ -4,13 +4,6 @@ import (
 	"time"
 )
 
-// RoleRegistration stores a role and its assignments to built-in roles
-// (Viewer, Editor, Admin, Grafana Admin)
-type RoleRegistration struct {
-	Role   RoleDTO
-	Grants []string
-}
-
 type Role struct {
 	Version     int64  `json:"version"`
 	UID         string `json:"uid"`
@@ -49,6 +42,9 @@ func (p RoleDTO) Role() Role {
 const (
 	// Permission actions
 
+	// Provisioning actions
+	ActionProvisioningReload = "provisioning:reload"
+
 	// Users actions
 	ActionUsersRead     = "users:read"
 	ActionUsersWrite    = "users:write"
@@ -95,13 +91,15 @@ const (
 	// Global Scopes
 	ScopeGlobalUsersAll = "global:users:*"
 
-	// Users scope
-	ScopeUsersAll = "users:*"
+	// Users scopes
+	ScopeUsersSelf = "users:self"
+	ScopeUsersAll  = "users:*"
 
 	// Settings scope
 	ScopeSettingsAll = "settings:**"
+
+	// Services Scopes
+	ScopeServicesAll = "service:*"
 )
 
 const RoleGrafanaAdmin = "Grafana Admin"
-
-const FixedRolePrefix = "fixed:"