Remove unconfigurable default fields from hbs files

[amirbenun]

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• 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.

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• Start Time: 2022-10-02T12:34:28.445+0000

• Duration: 14 min 44 sec

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Passed	2
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Total	2

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (0/0)	💚
Files	100.0% (0/0)	💚 2.792
Classes	100.0% (0/0)	💚 2.792
Methods	25.0% (1/4)	👎 -64.787
Lines	100.0% (0/0)	💚 8.465
Conditionals	100.0% (0/0)	💚