[WIP] perf: remove empty (no-op) HashMap values from TrieUpdates and HashedPostState

[kien-rise]

This is the simplified version of #13929.

Checklist

• Do benchmarks
• Improve PR description

Problem

In our benchmarks, we found that insert_storage_updates is adding hundreds of thousands of empty HashMaps. The number of meaningful entries is only thousands. By removing unnecessary entries, the performance will be improved.

Solution

Avoid adding unnecessary entries.

E2E Benchmarks

"785bc168-8538d2e7-erc20-35000"
{"tps": 35001.0, "gps": 1208892408.0443406, "is_chain_lagged": false, "chain_lag_distance": 1}
"785bc168-8538d2e7-erc20-36000"
{"tps": 36001.0, "gps": 1243434143.3961585, "is_chain_lagged": false, "chain_lag_distance": 0}
"785bc168-8538d2e7-erc20-36400"
{"tps": 36401.0, "gps": 1257247094.8883495, "is_chain_lagged": false, "chain_lag_distance": 1}
"785bc168-8538d2e7-erc20-36500"
{"tps": 36501.0, "gps": 1260693706.9232643, "is_chain_lagged": false, "chain_lag_distance": 1}
"785bc168-8538d2e7-erc20-36600"
{"tps": 36601.0, "gps": 1264152458.967033, "is_chain_lagged": false, "chain_lag_distance": 1}
"785bc168-8538d2e7-erc20-36700"
{"tps": 36701.0, "gps": 1267609469.7209303, "is_chain_lagged": true, "chain_lag_distance": 3}
"785bc168-8538d2e7-erc20-36800"
{"tps": 36801.0, "gps": 1271062700.5061426, "is_chain_lagged": true, "chain_lag_distance": 3}
"785bc168-8538d2e7-erc20-37200"
{"tps": 37201.0, "gps": 1284879652.7344913, "is_chain_lagged": true, "chain_lag_distance": 4}
"785bc168-8538d2e7-erc20-37600"
{"tps": 37601.0, "gps": 1298689498.6323714, "is_chain_lagged": true, "chain_lag_distance": 4}
"785bc168-8538d2e7-erc20-38000"
{"tps": 38001.0, "gps": 1312505549.7563453, "is_chain_lagged": true, "chain_lag_distance": 6}
"785bc168-8538d2e7-erc20-44000"
{"tps": 44001.0, "gps": 1519733106.229075, "is_chain_lagged": true, "chain_lag_distance": 40}
"785bc168-8538d2e7-raw-transfer-100000"
{"tps": 70917.98574821853, "gps": 1489301229.0783849, "is_chain_lagged": true, "chain_lag_distance": 2}
"785bc168-8538d2e7-raw-transfer-62000"
{"tps": 61380.149590163935, "gps": 1289006639.2868853, "is_chain_lagged": true, "chain_lag_distance": 2}
"785bc168-8538d2e7-raw-transfer-63000"
{"tps": 62550.83054393306, "gps": 1313590953.6401675, "is_chain_lagged": false, "chain_lag_distance": 0}
"785bc168-8538d2e7-raw-transfer-65000"
{"tps": 64196.991416309014, "gps": 1348160328.695279, "is_chain_lagged": false, "chain_lag_distance": 0}
"785bc168-8538d2e7-raw-transfer-69000"
{"tps": 68050.51818181819, "gps": 1429084397.3454545, "is_chain_lagged": false, "chain_lag_distance": 1}
"785bc168-8538d2e7-raw-transfer-70000"
{"tps": 67990.69772727272, "gps": 1427828167.1454546, "is_chain_lagged": false, "chain_lag_distance": 0}
"785bc168-8538d2e7-raw-transfer-72000"
{"tps": 69915.03971962616, "gps": 1468239350.3831775, "is_chain_lagged": false, "chain_lag_distance": 1}
"785bc168-8538d2e7-raw-transfer-76000"
{"tps": 68643.54377880185, "gps": 1441537944.4147465, "is_chain_lagged": true, "chain_lag_distance": 2}
"785bc168-8538d2e7-raw-transfer-78000"
{"tps": 69454.44755244756, "gps": 1458566913.5244756, "is_chain_lagged": false, "chain_lag_distance": 1}
"785bc168-8538d2e7-raw-transfer-80000"
{"tps": 70477.3905882353, "gps": 1480048723.2705882, "is_chain_lagged": true, "chain_lag_distance": 3}
"785bc168-8538d2e7-raw-transfer-82000"
{"tps": 71027.36255924171, "gps": 1491598139.0331755, "is_chain_lagged": true, "chain_lag_distance": 3}
"785bc168-8538d2e7-raw-transfer-84000"
{"tps": 69952.23696682464, "gps": 1469020502.3033175, "is_chain_lagged": true, "chain_lag_distance": 3}
"785bc168-8538d2e7-uniswap-6580"
{"tps": 6581.0, "gps": 917313166.4229926, "is_chain_lagged": false, "chain_lag_distance": 0}
"785bc168-8538d2e7-uniswap-6590"
{"tps": 6591.0, "gps": 918700006.3924413, "is_chain_lagged": false, "chain_lag_distance": 1}
"785bc168-8538d2e7-uniswap-6600"
{"tps": 6601.0, "gps": 920100031.6195819, "is_chain_lagged": false, "chain_lag_distance": 1}
"785bc168-8538d2e7-uniswap-6610"
{"tps": 6611.0, "gps": 921483410.1694952, "is_chain_lagged": true, "chain_lag_distance": 3}
"785bc168-8538d2e7-uniswap-6620"
{"tps": 6621.0, "gps": 922882071.8124034, "is_chain_lagged": true, "chain_lag_distance": 2}
"785bc168-8538d2e7-uniswap-6700"
{"tps": 6701.0, "gps": 934018761.980563, "is_chain_lagged": true, "chain_lag_distance": 7}
"785bc168-8538d2e7-uniswap-6860"
{"tps": 6861.0, "gps": 956326845.1132205, "is_chain_lagged": true, "chain_lag_distance": 17}