RBAC: Remove builtin role code (#53767)

* remove rbacBuiltInRoleAssignmentEnabled from frontendsettings

* RBAC: Remove RBACBuiltInRoleAssignmentEnabled

* RBAC: Remove code for builtin role

* RolePicker: Remove unused prop

* RolePicker: Rename builtinRole to basicRole

* RolePicker: Rename onBuiltinRoleChange to onBasicRoleChange

* RolePicker: Rename properties

packages/grafana-data/src/types/config.ts

@@ -182,7 +182,6 @@ export interface GrafanaConfig {
   verifyEmailEnabled: boolean;
   oauth: OAuthSettings;
   rbacEnabled: boolean;
-  rbacBuiltInRoleAssignmentEnabled: boolean;
   disableUserSignUp: boolean;
   loginHint: string;
   passwordHint: string;

packages/grafana-runtime/src/config.ts

@@ -62,7 +62,6 @@ export class GrafanaBootConfig implements GrafanaConfig {
   verifyEmailEnabled = false;
   oauth: OAuthSettings = {};
   rbacEnabled = true;
-  rbacBuiltInRoleAssignmentEnabled = false;
   disableUserSignUp = false;
   loginHint = '';
   passwordHint = '';