[fix](metrics)Delete the extra underline for metrics

[zy-kkk]

Proposed changes

Issue Number: close #xxx

Problem summary

Delete the extra underline for metrics error doris_be__max_disk_io_util_percent correct doris_be_max_disk_io_util_percent

Describe your changes.

Checklist(Required)

• [ ] Does it affect the original behavior
• [ ] Has unit tests been added
• [ ] Has document been added or modified
• [ ] Does it need to update dependencies
• [ ] Is this PR support rollback (If NO, please explain WHY)

Further comments

If this is a relatively large or complex change, kick off the discussion at [email protected] by explaining why you chose the solution you did and what alternatives you considered, etc...

[zy-kkk]

run buildall

[github-actions[bot]]

PR approved by at least one committer and no changes requested.

[github-actions[bot]]

PR approved by anyone and no changes requested.

[github-actions[bot]]

clang-tidy review says "All clean, LGTM! :+1:"

[hello-stephen]

TeamCity pipeline, clickbench performance test result: the sum of best hot time: 34.84 seconds stream load tsv: 472 seconds loaded 74807831229 Bytes, about 151 MB/s stream load json: 38 seconds loaded 2358488459 Bytes, about 59 MB/s stream load orc: 74 seconds loaded 1101869774 Bytes, about 14 MB/s stream load parquet: 32 seconds loaded 861443392 Bytes, about 25 MB/s https://doris-community-test-1308700295.cos.ap-hongkong.myqcloud.com/tmp/20230304152138_clickbench_pr_108491.html

[zy-kkk]

run buildall

[github-actions[bot]]

clang-tidy review says "All clean, LGTM! :+1:"

[zy-kkk]

run buildall

[github-actions[bot]]

clang-tidy review says "All clean, LGTM! :+1:"

[github-actions[bot]]

clang-tidy review says "All clean, LGTM! :+1:"

[zy-kkk]

run buildall

[github-actions[bot]]

clang-tidy review says "All clean, LGTM! :+1:"