TMeteringStatsHelper.TryFixOldFormat is no longer needed

[kunga]

Changelog entry

...

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

TMeteringStatsHelper.TryFixOldFormat was added for backward compatibilyty, but because we only bill during index build, it is no longer needed anymore

#25811 (comment)

[github-actions]

⚪ 2025-09-30 13:28:43 UTC Pre-commit check linux-x86_64-release-asan for 908a0a2 has started.
⚪ 2025-09-30 13:28:57 UTC Artifacts will be uploaded here
⚪ 2025-09-30 13:32:40 UTC ya make is running...
🟡 2025-09-30 16:02:01 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
15704	15138	0	263	274	29

🟢 2025-09-30 16:02:06 UTC Build successful.
🟢 2025-09-30 16:02:29 UTC ydbd size 3.7 GiB changed* by -1.4 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 26207ed	merge: 908a0a2	diff	diff %
ydbd size	3 987 843 744 Bytes	3 987 842 264 Bytes	-1.4 KiB	-0.000%
ydbd stripped size	1 486 399 712 Bytes	1 486 399 200 Bytes	-512 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

🟢 2025-09-30 13:38:19 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-09-30 13:28:59 UTC Pre-commit check linux-x86_64-relwithdebinfo for 908a0a2 has started.
⚪ 2025-09-30 13:29:14 UTC Artifacts will be uploaded here
⚪ 2025-09-30 13:32:52 UTC ya make is running...
🟡 2025-09-30 15:11:56 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
38630	35751	0	1	2847	31

⚪ 2025-09-30 15:12:05 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-09-30 15:31:37 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
563 (only retried tests)	429	0	0	109	25

🟢 2025-09-30 15:31:40 UTC Build successful.
🟢 2025-09-30 15:31:56 UTC ydbd size 2.2 GiB changed* by +15.7 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: f857683	merge: 908a0a2	diff	diff %
ydbd size	2 397 644 808 Bytes	2 397 660 880 Bytes	+15.7 KiB	+0.001%
ydbd stripped size	512 620 648 Bytes	512 625 960 Bytes	+5.2 KiB	+0.001%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}