chore: Validations cleanup and old grants removal (#2884)

- Remove the following validations (adjust the documentation to link
valid input formats for fields like passwords or account names):
  - `ValidatePassword`
  - `ValidateIsNotAccountLocator`
  - `ValidateAccountIdentifier`
  - `ValidateEmail`
  - `ValidateAdminName`
  - `ValidateIdentifier`
- implement `IsValidAccountIdentifier`(replacement for
ValidateIsNotAccountLocator)
- replace `ValidateAccountIdentifier` with already existing
`IsValidIdentifier[sdk.AccountObjectIdentifier]()`
- extract csv-based identifier parsing logic (with tests)
- fix tests using Errorf check (probably more to follow in other PR)
- resolve TODO with grant ownership
- remove old grant resources from
#2736
- remove old ownership resources
- add new issue to the known issues list
- remove preview resource from all grant resources

MIGRATION_GUIDE.md

@@ -5,6 +5,9 @@ describe deprecations or breaking changes and help you to change your configurat
 across different versions.
 
 ## v0.92.0 ➞ v0.93.0
+### old grant resources removal
+Following the [announcement](https://github.com/Snowflake-Labs/terraform-provider-snowflake/discussions/2736) we have removed the old grant resources. The two resources [snowflake_role_ownership_grant](https://registry.terraform.io/providers/Snowflake-Labs/snowflake/latest/docs/resources/role_ownership_grant) and [snowflake_user_ownership_grant](https://registry.terraform.io/providers/Snowflake-Labs/snowflake/latest/docs/resources/user_ownership_grant) were not listed in the announcement, but they were also marked as deprecated ones. We are removing them too to conclude the grants redesign saga.
+
 ### snowflake_scim_integration resource changes
 #### *(behavior change)* Renamed fields
 

docs/index.md

@@ -229,35 +229,8 @@ The Snowflake provider will use the following order of precedence when determini
 
 ## Currently deprecated resources
 
-- [snowflake_account_grant](./docs/resources/account_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_database_grant](./docs/resources/database_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
 - [snowflake_database_old](./docs/resources/database_old)
-- [snowflake_external_table_grant](./docs/resources/external_table_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_failover_group_grant](./docs/resources/failover_group_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_file_format_grant](./docs/resources/file_format_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_function_grant](./docs/resources/function_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_grant_privileges_to_role](./docs/resources/grant_privileges_to_role) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_integration_grant](./docs/resources/integration_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_masking_policy_grant](./docs/resources/masking_policy_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_materialized_view_grant](./docs/resources/materialized_view_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_pipe_grant](./docs/resources/pipe_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_procedure_grant](./docs/resources/procedure_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_resource_monitor_grant](./docs/resources/resource_monitor_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_role_grants](./docs/resources/role_grants) - use [snowflake_grant_account_role](./docs/resources/grant_account_role) instead
-- [snowflake_role_ownership_grant](./docs/resources/role_ownership_grant) - use [snowflake_grant_ownership](./docs/resources/grant_ownership) instead
-- [snowflake_row_access_policy_grant](./docs/resources/row_access_policy_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_schema_grant](./docs/resources/schema_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_sequence_grant](./docs/resources/sequence_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_stage_grant](./docs/resources/stage_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_stream_grant](./docs/resources/stream_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_table_grant](./docs/resources/table_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_tag_grant](./docs/resources/tag_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_task_grant](./docs/resources/task_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
 - [snowflake_unsafe_execute](./docs/resources/unsafe_execute)
-- [snowflake_user_grant](./docs/resources/user_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_user_ownership_grant](./docs/resources/user_ownership_grant) - use [snowflake_grant_ownership](./docs/resources/grant_ownership) instead
-- [snowflake_view_grant](./docs/resources/view_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
-- [snowflake_warehouse_grant](./docs/resources/warehouse_grant) - use [snowflake_grant_privileges_to_account_role](./docs/resources/grant_privileges_to_account_role) instead
 
 ## Currently deprecated datasources