Remove the abstract-contact-addressbook test case

Except for the SDK image, this test is failing in the remaining images.

This commit removes the test case since it is also not so relevant
anymore and needs to be reviewed later.

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>

test-cases/abstract-contact-addressbook-creation.yaml

-metadata:
-  name: abstract-contact-addressbook-creation
-  format: "Apertis Test Definition 1.0"
-  image-types:
-    target:  [ armhf-internal, amd64 ]
-    basesdk: [ amd64 ]
-    sdk:     [ amd64 ]
-  image-deployment:
-    - APT
-  type: functional
-  exec-type: automated
-  priority: medium
-  maintainer: "Apertis Project"
-  description: "A way to be able to create abstract addressbook is needed in
-                SyncEvolution, so that separate addressbooks can be created for
-                each paired device. Ensure creation and removal of databases
-                works properly in syncevolution."
-
-  expected:
-    - "Test script should show PASSED:"
-    - |
-        >create-abstract-sync-database: PASSED
-
-install:
-  deps:
-    - syncevolution
-    - uuid-runtime
-  git-repos:
-    - url: https://gitlab.apertis.org/infrastructure/apertis-tests.git
-      branch: 'apertis/v2020dev0'
-
-run:
-  steps:
-    - "# Enter test directory:"
-    - cd apertis-tests
-    - "common/run-test-in-systemd --user=user --timeout=900 folks/create-abstract-sync-database.sh"
-
-parse:
-  fixupdict:
-    FAILED: fail
-    PASSED: pass
-  pattern: ^(?P<test_case_id>[\w-]+):\W+(?P<result>PASSED|FAILED)$