[lldb] Remove --rerun-all-issues as its functionality no longer exists

The logic behind --rerun-all-issues was removed when we switched to LIT
as the test driver. This patch just removes the dotest option and
corresponding entry in configuration.py.

lldb/packages/Python/lldbsuite/test/configuration.py

@@ -135,9 +135,6 @@ test_result = None
 capture_path = None
 replay_path = None
 
-# Test rerun configuration vars
-rerun_all_issues = False
-
 # The names of all tests. Used to assert we don't have two tests with the
 # same base name.
 all_tests = set()

lldb/packages/Python/lldbsuite/test/dotest.py

@@ -416,10 +416,6 @@ def parseOptionsAndInitTestdirs():
 
     if args.replay_path:
         configuration.replay_path = args.replay_path
-
-    # rerun-related arguments
-    configuration.rerun_all_issues = args.rerun_all_issues
-
     if args.lldb_platform_name:
         configuration.lldb_platform_name = args.lldb_platform_name
     if args.lldb_platform_url:

lldb/packages/Python/lldbsuite/test/dotest_args.py

@@ -244,16 +244,6 @@ def create_parser():
         help='(Windows only) When LLDB crashes, display the Windows crash dialog.')
     group.set_defaults(disable_crash_dialog=True)
 
-    # Re-run related arguments
-    group = parser.add_argument_group('Test Re-run Options')
-    group.add_argument(
-        '--rerun-all-issues',
-        action='store_true',
-        help=('Re-run all issues that occurred during the test run '
-              'irrespective of the test method\'s marking as flakey. '
-              'Default behavior is to apply re-runs only to flakey '
-              'tests that generate issues.'))
-
     # Remove the reference to our helper function
     del X