[8.x] Functional tests - remove .empty file from screenshots dir (#20…

…0161) (#200198)

# Backport

This will backport the following commits from `main` to `8.x`:
- [Functional tests - remove .empty file from screenshots dir
(#200161)](#200161)

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

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

<!--BACKPORT [{"author":{"name":"Robert
Oskamp","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-11-14T14:46:28Z","message":"Functional
tests - remove .empty file from screenshots dir (#200161)\n\n##
Summary\r\n\r\nThis PR removes the `.empty` file from the
`test/functional/screenshots`\r\ndirectory as it's no longer
needed.\r\n\r\n### Details\r\n\r\nThe file has been introduced as part
of #14122 when the directory was\r\ncleaned. Since then, new base line
screenshots have been added, so the\r\ndirectory is no longer
empty.","sha":"79c5e844ff288db593fcd6467ba560e75e884242","branchLabelMapping":{"^v9.0.0$":"main","^v8.17.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","v9.0.0","backport:prev-minor","v8.17.0"],"title":"Functional
tests - remove .empty file from screenshots
dir","number":200161,"url":"https://github.com/elastic/kibana/pull/200161","mergeCommit":{"message":"Functional
tests - remove .empty file from screenshots dir (#200161)\n\n##
Summary\r\n\r\nThis PR removes the `.empty` file from the
`test/functional/screenshots`\r\ndirectory as it's no longer
needed.\r\n\r\n### Details\r\n\r\nThe file has been introduced as part
of #14122 when the directory was\r\ncleaned. Since then, new base line
screenshots have been added, so the\r\ndirectory is no longer
empty.","sha":"79c5e844ff288db593fcd6467ba560e75e884242"}},"sourceBranch":"main","suggestedTargetBranches":["8.x"],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/200161","number":200161,"mergeCommit":{"message":"Functional
tests - remove .empty file from screenshots dir (#200161)\n\n##
Summary\r\n\r\nThis PR removes the `.empty` file from the
`test/functional/screenshots`\r\ndirectory as it's no longer
needed.\r\n\r\n### Details\r\n\r\nThe file has been introduced as part
of #14122 when the directory was\r\ncleaned. Since then, new base line
screenshots have been added, so the\r\ndirectory is no longer
empty.","sha":"79c5e844ff288db593fcd6467ba560e75e884242"}},{"branch":"8.x","label":"v8.17.0","branchLabelMappingKey":"^v8.17.0$","isSourceBranch":false,"state":"NOT_CREATED"}]}]
BACKPORT-->

Co-authored-by: Robert Oskamp <[email protected]>