[GCP] Remove lightweight module in gcp.storage data stream

[legoguy1000]

What does this PR do?

Remove lightweight module in gcp.storage data stream

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Closes [GCP] Remove lightweight module in gcp.storage data stream #4262
• Requires [GCP] Remove lightweight module in gcp.pubsub data stream #4267

Screenshots

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Build stats

• Start Time: 2022-09-23T15:02:02.580+0000

• Duration: 20 min 6 sec

Test stats 🧪

Test	Results
Failed	0
Passed	82
Skipped	0
Total	82

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[legoguy1000]

@kaiyan-sheng rebased.

[endorama]

/test

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🚀 Benchmarks report

Package gcp 👍(4) 💚(0) 💔(1)

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Data stream	Previous EPS	New EPS	Diff (%)	Result
loadbalancing_logs	3937.01	2816.9	-1120.11 (-28.45%)	💔

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (5/5)	💚
Files	100.0% (5/5)	💚 2.66
Classes	100.0% (5/5)	💚 2.66
Methods	90.816% (89/98)	👍 0.896
Lines	95.752% (1375/1436)	👍 4.47
Conditionals	100.0% (0/0)	💚