[Maps] deprecate 'map.regionmap' kibana config and 'Configured GeoJSON' source

[nreese]

Part of #97532

This PR:

1. Registers deprecation messages for 'map.regionmap' kibana config with upgrade assistant.
2. Removes "Configured GeoJSON" layer wizard
3. Updates "Configured GeoJSON" layers to show "alert" icon with tooltip explaining how to resolve alert.

To test:

1. add the following to your kibana.dev.yml

xpack.upgrade_assistant.readonly: false

map.regionmap:
 layers:
  - attribution: "EMS"
    name: "My copy of world countries"
    url: "https://vector.maps.elastic.co/files/world_countries_v7.geo.json?elastic_tile_service_tos=agree&my_app_name=ems-landing-page&my_app_version=7.10.0&license=643c1faf-80fc-4ab0-9323-4d9bd11f4bbc"
    fields:
     - name: "name"
       description: "Name"
     - name: "iso2"
       description: "iso2"

2. Import map saved object with configured geojson layer

{"attributes":{"description":"","layerListJSON":"[{\"sourceDescriptor\":{\"type\":\"EMS_TMS\",\"isAutoSelect\":true},\"id\":\"85be2442-49e4-4a66-a6d0-81c0fc22c26a\",\"label\":null,\"minZoom\":0,\"maxZoom\":24,\"alpha\":1,\"visible\":true,\"style\":{\"type\":\"TILE\"},\"includeInFitToBounds\":true,\"type\":\"VECTOR_TILE\"},{\"sourceDescriptor\":{\"type\":\"REGIONMAP_FILE\",\"name\":\"My copy of world countries\"},\"id\":\"5d766667-52b9-4984-a33e-38d19308498d\",\"label\":null,\"minZoom\":0,\"maxZoom\":24,\"alpha\":0.75,\"visible\":true,\"style\":{\"type\":\"VECTOR\",\"properties\":{\"icon\":{\"type\":\"STATIC\",\"options\":{\"value\":\"marker\"}},\"fillColor\":{\"type\":\"STATIC\",\"options\":{\"color\":\"#54B399\"}},\"lineColor\":{\"type\":\"STATIC\",\"options\":{\"color\":\"#41937c\"}},\"lineWidth\":{\"type\":\"STATIC\",\"options\":{\"size\":1}},\"iconSize\":{\"type\":\"STATIC\",\"options\":{\"size\":6}},\"iconOrientation\":{\"type\":\"STATIC\",\"options\":{\"orientation\":0}},\"labelText\":{\"type\":\"STATIC\",\"options\":{\"value\":\"\"}},\"labelColor\":{\"type\":\"STATIC\",\"options\":{\"color\":\"#000000\"}},\"labelSize\":{\"type\":\"STATIC\",\"options\":{\"size\":14}},\"labelBorderColor\":{\"type\":\"STATIC\",\"options\":{\"color\":\"#FFFFFF\"}},\"symbolizeAs\":{\"options\":{\"value\":\"circle\"}},\"labelBorderSize\":{\"options\":{\"size\":\"SMALL\"}}},\"isTimeAware\":true},\"includeInFitToBounds\":true,\"type\":\"VECTOR\",\"joins\":[]}]","mapStateJSON":"{\"zoom\":2.01,\"center\":{\"lon\":0,\"lat\":19.94277},\"timeFilters\":{\"from\":\"now-15m\",\"to\":\"now\"},\"refreshConfig\":{\"isPaused\":true,\"interval\":0},\"query\":{\"query\":\"\",\"language\":\"kuery\"},\"filters\":[],\"settings\":{\"autoFitToDataBounds\":false,\"backgroundColor\":\"#ffffff\",\"disableInteractive\":false,\"disableTooltipControl\":false,\"hideToolbarOverlay\":false,\"hideLayerControl\":false,\"hideViewControl\":false,\"initialLocation\":\"LAST_SAVED_LOCATION\",\"fixedLocation\":{\"lat\":0,\"lon\":0,\"zoom\":2},\"browserLocation\":{\"zoom\":2},\"maxZoom\":24,\"minZoom\":0,\"showScaleControl\":false,\"showSpatialFilters\":true,\"showTimesliderToggleButton\":true,\"spatialFiltersAlpa\":0.3,\"spatialFiltersFillColor\":\"#DA8B45\",\"spatialFiltersLineColor\":\"#DA8B45\"}}","title":"map with configured geojson layer","uiStateJSON":"{\"isLayerTOCOpen\":true,\"openTOCDetails\":[]}"},"coreMigrationVersion":"8.0.0","id":"20111bb0-d5ae-11eb-a404-b351e49a7649","migrationVersion":{"map":"7.14.0"},"references":[],"type":"map","updated_at":"2021-06-25T12:09:10.782Z","version":"WzI0LDFd"}
{"excludedObjects":[],"excludedObjectsCount":0,"exportedCount":1,"missingRefCount":0,"missingReferences":[]}

3. Open imported map saved object. Notice the layer no longer displays data and has an alert icon in the TOC.
4. Open upgrade assistant. Notice there is a critical warning for removing map.regionmap

[elasticmachine]

Pinging @elastic/kibana-gis (Team:Geo)

[nreese]

@elasticmachine merge upstream

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 81739a0
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Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
maps	742	741	-1

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
maps	201	200	-1

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
maps	3.1MB	3.1MB	-1.4KB

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
maps	64.8KB	64.6KB	-218.0B

Unknown metric groups

API count

id	before	after	diff
maps	202	201	-1

History

• 💔 Build #134344 failed 476db28
• 💔 Build #134286 failed 12eda0c

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[thomasneirynck]

thank you!

+1 on removing the add-layer-card altogether. cc @kmartastic - this PR removes the ability for users to create new layers from a json-file configured in the kibana.yml (existing maps continue to work though).

[thomasneirynck]

thx for moving. This logic was pushed into ems-client, so there was no re-use anymore between kibana_regionmap_source and ems_layer_source

[thomasneirynck]

this is a nice touch.

[kibanamachine]

💚 Backport successful

Status	Branch	Result
✅	7.x

This backport PR will be merged automatically after passing CI.