twister: report: remove defunct and old option

--report-excluded has not been working for years, nobody has noticed.

Fixes #64644

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

scripts/pylib/twister/twisterlib/environment.py

@@ -550,12 +550,6 @@ structure in the main Zephyr tree: boards/<arch>/<board_name>/""")
                         default=True,
                         help="deprecated, left for compatibility")
 
-    parser.add_argument("--report-excluded",
-                        action="store_true",
-                        help="""List all tests that are never run based on current scope and
-            coverage. If you are looking for accurate results, run this with
-            --all, but this will take a while...""")
-
     parser.add_argument(
         "--report-name",
         help="""Create a report with a custom name.

scripts/pylib/twister/twisterlib/testplan.py

@@ -385,18 +385,6 @@ class TestPlan:
 
         print("{} total.".format(cnt))
 
-
-    def report_excluded_tests(self):
-        all_tests = self.get_all_tests()
-        to_be_run = set()
-        for _, p in self.instances.items():
-            to_be_run.update(p.testsuite.testcases)
-
-        if all_tests - to_be_run:
-            print("Tests that never build or run:")
-            for not_run in all_tests - to_be_run:
-                print("- {}".format(not_run))
-
     def config(self):
         logger.info("coverage platform: {}".format(self.coverage_platform))
 

scripts/pylib/twister/twisterlib/twister_main.py

@@ -151,10 +151,6 @@ def main(options):
                     )
                 )
 
-    if options.report_excluded:
-        tplan.report_excluded_tests()
-        return 0
-
     report = Reporting(tplan, env)
     plan_file = os.path.join(options.outdir, "testplan.json")
     if not os.path.exists(plan_file):