ci: Stop running the unstable test setups

This is just duplicating all our test runs,
for no discernible gain.

.gitlab-ci/run-tests.sh

@@ -27,7 +27,6 @@ case "${backend}" in
     # Store the exit code for the CI run, but always
     # generate the reports
     exit_code=$?
-
     ;;
 
   wayland*)
@@ -82,20 +81,19 @@ esac
 
 cd ${builddir}
 
-for suffix in "" "_unstable"; do
-    $srcdir/.gitlab-ci/meson-junit-report.py \
+$srcdir/.gitlab-ci/meson-junit-report.py \
             --project-name=gtk \
-            --backend="${backend}${suffix}" \
+            --backend="${backend}" \
             --job-id="${CI_JOB_NAME}" \
-            --output="report-${backend}${suffix}.xml" \
-            "meson-logs/testlog-${backend}${suffix}.json"
-    $srcdir/.gitlab-ci/meson-html-report.py \
+            --output="report-${backend}.xml" \
+            "meson-logs/testlog-${backend}.json"
+
+$srcdir/.gitlab-ci/meson-html-report.py \
             --project-name=gtk \
-            --backend="${backend}${suffix}" \
+            --backend="${backend}" \
             --job-id="${CI_JOB_NAME}" \
-            --reftest-output-dir="testsuite/reftests/output/${backend}${suffix}" \
-            --output="report-${backend}${suffix}.html" \
-            "meson-logs/testlog-${backend}${suffix}.json"
-done
+            --reftest-output-dir="testsuite/reftests/output/${backend}" \
+            --output="report-${backend}.html" \
+            "meson-logs/testlog-${backend}.json"
 
 exit $exit_code