[9.0] [lens][datatable] Remove eui datagrid styles (#204057) (#209492)

# Backport

This will backport the following commits from `main` to `9.0`:
- [[lens][datatable] Remove eui datagrid styles
(#204057)](#204057)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Maria
Iriarte","email":"[email protected]"},"sourceCommit":{"committedDate":"2025-02-04T10:05:35Z","message":"[lens][datatable]
Remove eui datagrid styles (#204057)\n\n## Summary\r\n\r\nRemoves
additional styles to make table background transparent, as it\r\nwas
directly removed in EUI
v98.2.1-borealis.1.1\r\nhttps://github.com//pull/204783.\r\n\r\n\r\n###
Checklist\r\n\r\n<!--\r\n\r\nCheck the PR satisfies following
conditions. \r\n\r\nReviewers should verify this PR satisfies this list
as well.\r\n\r\n- [ ] Any text added follows [EUI's
writing\r\nguidelines](https://elastic.github.io/eui/#/guidelines/writing),
uses\r\nsentence case text and includes
[i18n\r\nsupport](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)\r\n-
[
]\r\n[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)\r\nwas
added for features that require explanation or tutorials\r\n- [ ] [Unit
or
functional\r\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\r\nwere
updated or added to match the most common scenarios\r\n- [ ] If a plugin
configuration key changed, check if it needs to be\r\nallowlisted in the
cloud and added to the
[docker\r\nlist](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)\r\n-
[ ] This was checked for breaking HTTP API changes, and any
breaking\r\nchanges have been approved by the breaking-change committee.
The\r\n`release_note:breaking` label should be applied in these
situations.\r\n- [ ] [Flaky
Test\r\nRunner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1)
was\r\nused on any tests changed\r\n\r\n-->\r\n\r\n- [x] The PR
description includes the appropriate Release Notes section,\r\nand the
correct `release_note:*` label is applied per
the\r\n[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)\r\n\r\nCo-authored-by:
Marta Bondyra
<[email protected]>","sha":"bdf496b2e1bb71c0bda31ee85b8255a49b229de4","branchLabelMapping":{"^v9.1.0$":"main","^v8.19.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["Team:Visualizations","release_note:skip","Feature:Lens","v9.0.0","backport:version","v8.18.0","v9.1.0"],"title":"[lens][datatable]
Remove eui datagrid
styles","number":204057,"url":"https://github.com/elastic/kibana/pull/204057","mergeCommit":{"message":"[lens][datatable]
Remove eui datagrid styles (#204057)\n\n## Summary\r\n\r\nRemoves
additional styles to make table background transparent, as it\r\nwas
directly removed in EUI
v98.2.1-borealis.1.1\r\nhttps://github.com//pull/204783.\r\n\r\n\r\n###
Checklist\r\n\r\n<!--\r\n\r\nCheck the PR satisfies following
conditions. \r\n\r\nReviewers should verify this PR satisfies this list
as well.\r\n\r\n- [ ] Any text added follows [EUI's
writing\r\nguidelines](https://elastic.github.io/eui/#/guidelines/writing),
uses\r\nsentence case text and includes
[i18n\r\nsupport](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)\r\n-
[
]\r\n[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)\r\nwas
added for features that require explanation or tutorials\r\n- [ ] [Unit
or
functional\r\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\r\nwere
updated or added to match the most common scenarios\r\n- [ ] If a plugin
configuration key changed, check if it needs to be\r\nallowlisted in the
cloud and added to the
[docker\r\nlist](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)\r\n-
[ ] This was checked for breaking HTTP API changes, and any
breaking\r\nchanges have been approved by the breaking-change committee.
The\r\n`release_note:breaking` label should be applied in these
situations.\r\n- [ ] [Flaky
Test\r\nRunner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1)
was\r\nused on any tests changed\r\n\r\n-->\r\n\r\n- [x] The PR
description includes the appropriate Release Notes section,\r\nand the
correct `release_note:*` label is applied per
the\r\n[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)\r\n\r\nCo-authored-by:
Marta Bondyra
<[email protected]>","sha":"bdf496b2e1bb71c0bda31ee85b8255a49b229de4"}},"sourceBranch":"main","suggestedTargetBranches":["9.0","8.18"],"targetPullRequestStates":[{"branch":"9.0","label":"v9.0.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"8.18","label":"v8.18.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/204057","number":204057,"mergeCommit":{"message":"[lens][datatable]
Remove eui datagrid styles (#204057)\n\n## Summary\r\n\r\nRemoves
additional styles to make table background transparent, as it\r\nwas
directly removed in EUI
v98.2.1-borealis.1.1\r\nhttps://github.com//pull/204783.\r\n\r\n\r\n###
Checklist\r\n\r\n<!--\r\n\r\nCheck the PR satisfies following
conditions. \r\n\r\nReviewers should verify this PR satisfies this list
as well.\r\n\r\n- [ ] Any text added follows [EUI's
writing\r\nguidelines](https://elastic.github.io/eui/#/guidelines/writing),
uses\r\nsentence case text and includes
[i18n\r\nsupport](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)\r\n-
[
]\r\n[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)\r\nwas
added for features that require explanation or tutorials\r\n- [ ] [Unit
or
functional\r\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\r\nwere
updated or added to match the most common scenarios\r\n- [ ] If a plugin
configuration key changed, check if it needs to be\r\nallowlisted in the
cloud and added to the
[docker\r\nlist](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)\r\n-
[ ] This was checked for breaking HTTP API changes, and any
breaking\r\nchanges have been approved by the breaking-change committee.
The\r\n`release_note:breaking` label should be applied in these
situations.\r\n- [ ] [Flaky
Test\r\nRunner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1)
was\r\nused on any tests changed\r\n\r\n-->\r\n\r\n- [x] The PR
description includes the appropriate Release Notes section,\r\nand the
correct `release_note:*` label is applied per
the\r\n[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)\r\n\r\nCo-authored-by:
Marta Bondyra
<[email protected]>","sha":"bdf496b2e1bb71c0bda31ee85b8255a49b229de4"}}]}]
BACKPORT-->

Co-authored-by: Maria Iriarte <[email protected]>

x-pack/platform/plugins/shared/lens/public/visualizations/datatable/components/table_basic.scss

@@ -1,10 +1,5 @@
 .lnsDataTableContainer {
   height: 100%;
-
-  // EUI issue to make background transparent https://github.com/elastic/eui/issues/8136
-  .euiDataGrid__content {
-    background: transparent;
-  }
 }
 
 .lnsTableCell--multiline {