[ObsUX] Remove entities v2 code and Inventory (#224696)

Co-authored-by: Milton Hultgren <milton.hultgren@elastic.co>
Co-authored-by: Caue Marcondes <caue.marcondes@elastic.co>
Co-authored-by: Cauê Marcondes <55978943+cauemarcondes@users.noreply.github.com>
Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>

.buildkite/pipelines/flaky_tests/groups.json

@@ -92,10 +92,6 @@
       "key": "cypress/profiling_cypress",
       "name": "Profiling - Cypress"
     },
-    {
-      "key": "cypress/inventory_cypress",
-      "name": "Inventory - Cypress"
-    },
     {
       "key": "cypress/cloud_security_posture",
       "name": "Cloud Security Posture - Cypress"

.buildkite/pipelines/on_merge_unsupported_ftrs.yml

@@ -49,25 +49,6 @@ steps:
         - exit_status: '*'
           limit: 1
 
-  - command: .buildkite/scripts/steps/functional/inventory_cypress.sh
-    label: 'Inventory Cypress Tests'
-    agents:
-      image: family/kibana-ubuntu-2004
-      imageProject: elastic-images-prod
-      provider: gcp
-      machineType: n2-standard-4
-      preemptible: true
-    depends_on: build
-    env:
-      PING_SLACK_TEAM: "@obs-ux-infra_services-team"
-    timeout_in_minutes: 120
-    retry:
-      automatic:
-        - exit_status: '-1'
-          limit: 3
-        - exit_status: '*'
-          limit: 1
-
   - command: .buildkite/scripts/steps/test/scout_test_run_builder.sh
     label: 'Scout Test Run Builder'
     agents:

.buildkite/pipelines/pull_request/inventory_cypress.yml

@@ -1,22 +0,0 @@
-steps:
-  - command: .buildkite/scripts/steps/functional/inventory_cypress.sh
-    label: 'Inventory Cypress Tests'
-    agents:
-      machineType: n2-standard-4
-      preemptible: true
-    depends_on:
-      - build
-      - quick_checks
-      - checks
-      - linting
-      - linting_with_types
-      - check_types
-      - check_oas_snapshot
-    timeout_in_minutes: 120
-    parallelism: 1
-    retry:
-      automatic:
-        - exit_status: '-1'
-          limit: 3
-        - exit_status: '*'
-          limit: 1

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

@@ -99,16 +99,6 @@ const getPipeline = (filename: string, removeSteps = true) => {
       pipeline.push(getPipeline('.buildkite/pipelines/pull_request/apm_cypress.yml'));
     }
 
-    if (
-      (await doAnyChangesMatch([
-        /^x-pack\/solutions\/observability\/plugins\/inventory/,
-        /^src\/platform\/packages\/shared\/kbn-apm-synthtrace/,
-      ])) ||
-      GITHUB_PR_LABELS.includes('ci:all-cypress-suites')
-    ) {
-      pipeline.push(getPipeline('.buildkite/pipelines/pull_request/inventory_cypress.yml'));
-    }
-
     if (
       (await doAnyChangesMatch([/^x-pack\/solutions\/observability\/plugins\/profiling/])) ||
       GITHUB_PR_LABELS.includes('ci:all-cypress-suites')

.buildkite/scripts/steps/functional/inventory_cypress.sh

@@ -1,18 +0,0 @@
-#!/usr/bin/env bash
-
-set -euo pipefail
-
-source .buildkite/scripts/common/util.sh
-
-.buildkite/scripts/bootstrap.sh
-.buildkite/scripts/download_build_artifacts.sh
-.buildkite/scripts/copy_es_snapshot_cache.sh
-
-export JOB=kibana-inventory-onboarding-cypress
-
-echo "--- Observability Inventory Cypress Tests"
-
-cd "$XPACK_DIR"
-
-node solutions/observability/plugins/inventory/scripts/test/e2e.js \
-  --kibana-install-dir "$KIBANA_BUILD_LOCATION" \