[Profiling] Remove profiling Cypress tests in favor of the new Scout tests (#242255)

Closes [#210174](#210174)

## Summary

After adding the e2e tests in
#239964 , we are safe to remove
the Cypress ones

> [!IMPORTANT]  
> Please check also: #242030 It
fixes the differential functions ones and it's good to be merged first
:)

Author: jennypavlova

.buildkite/ftr_oblt_stateful_configs.yml

@@ -6,7 +6,6 @@ disabled:
   - x-pack/solutions/observability/plugins/observability_onboarding/e2e/ftr_config.ts
   - x-pack/solutions/observability/plugins/inventory/e2e/ftr_config_run.ts
   - x-pack/solutions/observability/plugins/inventory/e2e/ftr_config.ts
-  - x-pack/solutions/observability/test/profiling_cypress/cli_config.ts
   #FTR configs
   - x-pack/solutions/observability/plugins/uptime/e2e/config.ts
   - x-pack/solutions/observability/test/api_integration/config.ts

.buildkite/pipelines/flaky_tests/groups.json

@@ -112,10 +112,6 @@
       "key": "cypress/apm_cypress",
       "name": "APM - Cypress"
     },
-    {
-      "key": "cypress/profiling_cypress",
-      "name": "Profiling - Cypress"
-    },
     {
       "key": "cypress/cloud_security_posture",
       "name": "Cloud Security Posture - Cypress"

.buildkite/pipelines/on_merge.yml

@@ -601,21 +601,6 @@ steps:
         - exit_status: '-1'
           limit: 1
 
-  - command: .buildkite/scripts/steps/functional/profiling_cypress.sh
-    label: 'Profiling Cypress Tests'
-    agents:
-      image: family/kibana-ubuntu-2404
-      imageProject: elastic-images-prod
-      provider: gcp
-      machineType: n2-standard-4
-      preemptible: true
-    timeout_in_minutes: 120
-    parallelism: 3
-    retry:
-      automatic:
-        - exit_status: '-1'
-          limit: 1
-
   - command: .buildkite/scripts/steps/functional/apm_cypress.sh
     label: 'APM Cypress Tests'
     agents:

.buildkite/pipelines/pull_request/profiling_cypress.yml

@@ -101,13 +101,6 @@ const getPipeline = (filename: string, removeSteps = true) => {
       pipeline.push(getPipeline('.buildkite/pipelines/pull_request/apm_cypress.yml'));
     }
 
-    if (
-      (await doAnyChangesMatch([/^x-pack\/solutions\/observability\/plugins\/profiling/])) ||
-      GITHUB_PR_LABELS.includes('ci:all-cypress-suites')
-    ) {
-      pipeline.push(getPipeline('.buildkite/pipelines/pull_request/profiling_cypress.yml'));
-    }
-
     if (
       (await doAnyChangesMatch([
         /^x-pack\/platform\/plugins\/shared\/fleet/,

.buildkite/scripts/pipelines/pull_request/pipeline.ts

@@ -2951,9 +2951,6 @@ x-pack/solutions/security/plugins/security_solution/server/lib/security_integrat
 # Changes to translation files should not ping code reviewers
 x-pack/platform/plugins/private/translations/translations
 
-# Profiling cypress tests
-x-pack/solutions/observability/test/profiling_cypress @elastic/obs-ux-infra_services-team
-
 # Profiling api integration testing
 x-pack/solutions/observability/test/api_integration/profiling @elastic/obs-ux-infra_services-team
 

.buildkite/scripts/steps/functional/profiling_cypress.sh

@@ -46,29 +46,11 @@ The authentication and authorization on this endpoint are provided as part of th
 node scripts/jest --config x-pack/solutions/observability/plugins/profiling/jest.config.js [--watchAll]
 ```
 
-## E2E Tests (Cypress)
-The E2E tests are located in [`x-pack/solutions/observability/plugins/profiling/e2e`](./e2e).
+## E2E Tests (Scout)
 
-Universal Profiling uses [FTR](../../../../src/platform/packages/shared/kbn-test/README.mdx) (functional test runner) and [Cypress](https://www.cypress.io/) to run the e2e tests. The tests are located at `kibana/x-pack/solutions/observability/plugins/profiling/e2e/cypress/e2e`.
+The E2E tests are located in [`x-pack/solutions/observability/plugins/profiling/test/scout`](./test/scout).
 
-### Start with Cypress Dashboard
-
-```
-node x-pack/solutions/observability/plugins/profiling/scripts/test/e2e --open
-```
-
-### Run tests
-Runs all tests in the terminal
-
-```
-node x-pack/solutions/observability/plugins/profiling/scripts/test/e2e
-```
-
-### Run tests in headed mode
-
-```
-node x-pack/solutions/observability/plugins/profiling/scripts/test/e2e --headed
-```
+Universal Profiling uses [Scout](https://github.com/elastic/kibana/tree/main/x-pack/solutions/observability/packages/kbn-scout-oblt) (Playwright-based test framework) to run the e2e tests. For detailed instructions on how to run the tests, see the [Scout tests README](./test/scout/README.md).
 
 ## Other resources
 - [Official Profiling documentation](https://www.elastic.co/observability/universal-profiling)