[Feature] Make XCM benchmarks more reusable and remove a redundant bench (#5936)

* [Feature] Make XCM benchmarks more reusable and remove a redunant bench

* implement track balances flag

* little comment fix

* Revert "little comment fix"

This reverts commit 6d0d1bb4d74752aa518c4d71718c1b71673bcca8.

* Revert "implement track balances flag"

This reverts commit e7884cbc57d053c5d57a80aab4caa42e78cfdc17.

* fix unused