Coding style fixes + remove dead code

Author: vkarak

reframe/core/pipeline.py

@@ -2299,7 +2299,7 @@ def check_performance(self):
                     sn.assert_reference(
                         val, ref, low_thres, high_thres,
                         msg=('failed to meet reference: %s={0}, '
-                                'expected {1} (l={2}, u={3})' % tag))
+                             'expected {1} (l={2}, u={3})' % tag))
                 )
             except SanityError as e:
                 raise PerformanceError(e) from None

reframe/frontend/executors/__init__.py

@@ -141,17 +141,6 @@ def clone_testcases(cases):
     return dependencies.toposort(dependencies.build_deps(new_cases)[0])
 
 
-class _temp_dry_run:
-    def __init__(self, check):
-        self._check = check
-        self._dry_run_save = check._rfm_dry_run
-
-    def __enter__(self):
-        self._check._rfm_dry_run = True
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        self._check._rfm_dry_run = self._dry_run_save
-
 class RegressionTask:
     '''A class representing a :class:`RegressionTest` through the regression
     pipeline.'''

unittests/test_cli.py

@@ -423,7 +423,8 @@ def test_perflogdir_from_env(run_reframe, tmp_path, monkeypatch):
 def test_performance_report(run_reframe, run_action):
     returncode, stdout, _ = run_reframe(
         checkpath=['unittests/resources/checks/frontend_checks.py'],
-        more_options=['-n', '^PerformanceFailureCheck', '--performance-report'],
+        more_options=['-n', '^PerformanceFailureCheck',
+                      '--performance-report'],
         action=run_action
     )
     if run_action == 'run':