Tracking issue for the `tidb_mem_quota_analyze`

## Enhancement
In the past, we introduced `tidb_mem_quota_analyze` to help us control the memory usage of the `analyze` statement.

But the problem is that the default value of this variable is -1, it means we always use the global memory controller to control the memory usage of all queries.

In most cases, we don't enable this feature as the global memory controller is sufficient. We introduced this feature before we added `tidb_mem_server_limit` as a global variable. Currently, they both perform almost the same function so we have decided to deprecate it.