Revert "Test case to check updated_date (#3764)"

This reverts commit 7621a54fcc.

tests/test_all_rules.py

@@ -640,37 +640,6 @@ class TestRuleMetadata(BaseRuleTest):
         if result:
             self.fail(f"Deprecated rules {result} has been modified")
 
-    def test_rule_change_has_updated_date(self):
-        """Test to ensure modified rules have updated_date field updated."""
-
-        rules_path = get_path("rules")
-        rules_bbr_path = get_path("rules_building_block")
-
-        # Use git diff to check if the file(s) has been modified in rules/ rules_build_block/ directory
-        # For now this checks even rules/_deprecated any modification there will fail
-        # the test case "test_deprecated_rules_modified", which means an ignore directory
-        # is not required as there is a specific test for deprecated rules
-
-        detection_rules_git = make_git()
-        result = detection_rules_git("diff", "--diff-filter=M", "origin/main", "--name-only",
-                                     rules_path, rules_bbr_path)
-
-        # If the output is not empty, then file(s) have changed in the directory(s)
-        if result:
-            modified_rules = result.splitlines()
-            failed_rules = []
-            for modified_rule_path in modified_rules:
-                diff_output = detection_rules_git('diff', 'origin/main', modified_rule_path)
-                if not re.search(r'\+\s*updated_date =', diff_output):
-                    # Rule has been modified but updated_date has not been changed, add to list of failed rules
-                    failed_rules.append(f'{modified_rule_path}')
-
-            if failed_rules:
-                fail_msg = """
-                The following rules in the below path(s) have been modified but updated_date has not been changed \n
-                """
-                self.fail(fail_msg + '\n'.join(failed_rules))
-
     @unittest.skipIf(PACKAGE_STACK_VERSION < Version.parse("8.3.0"),
                      "Test only applicable to 8.3+ stacks regarding related integrations build time field.")
     def test_integration_tag(self):