Add simulated merge-queue job

Add the branch of PR-906 (dev/dgreen-arm/ci-testing-development) as a
branch job as well to mbed-tls-restricted-pr-ci-testing, to simulate a
merge queue job.

Also remove the main mbedtls repo as a source repo from the same job,
which was used during the bringup of the merge queue jobs.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: I94e92f488977b7617860c8ed2a464cf6ed3b9f1b
diff --git a/mbed-tls-restricted-pr-ci-testing.yaml b/mbed-tls-restricted-pr-ci-testing.yaml
index bbcfc9d..635e23b 100644
--- a/mbed-tls-restricted-pr-ci-testing.yaml
+++ b/mbed-tls-restricted-pr-ci-testing.yaml
@@ -36,31 +36,9 @@
         credentials-id: mbedtls-github-token
         repo-owner: Mbed-TLS
         repo: mbedtls-restricted
-        branch-discovery: no-pr
-        discover-pr-origin: both
-        head-filter-regex: 'PR-(758|759|806|850|906|916|919|1225|1227|1233)-.*'
-        status-checks:
-          skip: true
-          skip-branch-source-notifications: true
-        property-strategies:
-          all-branches:
-          - pipeline-branch-durability-override: performance-optimized
-        submodule:
-          disable: false
-          recursive: true
-          tracking: false
-          parent-credentials: true
-        ssh-checkout:
-          credentials: mbedtls-github-ssh
-    - github:
-        credentials-id: mbedtls-github-token
-        repo-owner: Mbed-TLS
-        repo: mbedtls
         branch-discovery: all
         discover-pr-origin: both
-        discover-pr-forks-strategy: both
-        discover-pr-forks-trust: nobody
-        head-filter-regex: 'PR-7959-(head|merge)|gh-readonly-queue/dev/bensze01/merge-queue-test/.*'
+        head-filter-regex: 'dev/dgreen-arm/ci-testing-development|PR-(758|759|806|850|906|916|919|1225|1227|1233)-.*'
         status-checks:
           skip: true
           skip-branch-source-notifications: true