Add storage bounds for pallet staking and clean up deprecated non paged exposure storages
#15181
| Job | Run time |
|---|---|
| 40s | |
| 1m 2s | |
| 3m 43s | |
| 3m 46s | |
| 4m 10s | |
| 3m 45s | |
| 3m 47s | |
| 3m 46s | |
| 4m 10s | |
| 3m 45s | |
| 3m 45s | |
| 3m 45s | |
| 1s | |
| 40m 5s |