delete the check dir, avoid integration test fail

Author: zhuoran-Cheng16

src/acquisition/covidcast/csv_importer.py

@@ -88,7 +88,7 @@ def find_issue_specific_csv_files(scan_dir, glob=glob):
     logger = get_structured_logger('find_issue_specific_csv_files')
     for path in sorted(glob.glob(os.path.join(scan_dir, '*'))):
       issuedir_match = CsvImporter.PATTERN_ISSUE_DIR.match(path.lower())
-      if issuedir_match and glob.glob(os.path.isdir(path)):
+      if issuedir_match:
         issue_date_value = int(issuedir_match.group(2))
         issue_date = CsvImporter.is_sane_day(issue_date_value)
         if issue_date:

tests/acquisition/covidcast/test_csv_importer.py

@@ -50,7 +50,7 @@ def test_find_issue_specific_csv_files(self):
       glob_issue_path = path_prefix + issue_path
       glob_file_path = path_prefix + issue_path + '/ght/20200408_state_rawsearch.csv'
       mock_glob = MagicMock()
-      mock_glob.glob.side_effect = ([glob_issue_path], [glob_file_path], [glob_file_path])
+      mock_glob.glob.side_effect = ([glob_issue_path], [glob_file_path])
 
       #check if the day is a valid issue day.
       issuedir_match = CsvImporter.PATTERN_ISSUE_DIR.match(glob_issue_path.lower())