add '2-aho` in matcher & remove 2-aho file test

Author: alok1304

src/licensedcode/detection.py

@@ -1072,7 +1072,7 @@ def is_correct_detection(license_matches):
     ]
 
     return (
-        all(matcher in ("1-hash", "1-spdx-id") for matcher in matchers)
+        all(matcher in ("1-hash", "1-spdx-id", "2-aho") for matcher in matchers)
         and all(is_match_coverage_perfect)
     )
 

tests/licensedcode/data/plugin_license/extra-words/scan-extra-words-2-aho-license.expected.json

@@ -93,24 +93,6 @@ def test_license_match_unknown_clues_is_not_in_expression():
     check_json_scan(test_loc, result_file, regen=REGEN_TEST_FIXTURES)
 
 
-def test_license_match_extra_words_2_aho():
-    test_dir = test_env.get_test_loc('plugin_license/extra-words/scan-extra-words-2-aho-license/', copy=True)
-    result_file = test_env.get_temp_file('json')
-    args = [
-        '--license',
-        '--license-text',
-        '--license-text-diagnostics',
-        '--license-diagnostics',
-        '--strip-root',
-        '--verbose',
-        '--json', result_file,
-        test_dir,
-    ]
-    run_scan_click(args)
-    test_loc = test_env.get_test_loc('plugin_license/extra-words/scan-extra-words-2-aho-license.expected.json')
-    check_json_scan(test_loc, result_file, regen=REGEN_TEST_FIXTURES)
-
-
 def test_license_match_extra_words_3_seq():
     test_dir = test_env.get_test_loc('plugin_license/extra-words/scan-extra-words-3-seq-license/', copy=True)
     result_file = test_env.get_temp_file('json')