[cherry-pick] remove excessive backup decompression logging (#11479)

[rsajwani]

Signed-off-by: Rameez Sajwani rameezwazirali@hotmail.com

Description

Forward port of: #11479

Related Issue(s)

• Fixes: Too many warning log statements during backup #11480

Checklist

• "Backport me!" label has been added if this change should be backported
• Tests were added or are not required
• Documentation was added or is not required

Deployment Notes

[vitess-bot]

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