[libgweather] metar test: Don't use "known" duplicates

[Emmanuele Bassi <ebassi src gnome org>]

commit 8b4fe0ad32bac4da47188207541b0aec3f786498
Author: Pierre Labastie <pierre labastie neuf fr>
Date:   Sun Apr 10 22:24:47 2022 +0200

    metar test: Don't use "known" duplicates
    
    The metar list provided by NOAA contains duplicate ICAO codes.
    Those duplicates may change over time, so it does not make sense
    to use an array of known duplicates. Presently a duplicate is rejected
    when it is known, and inserted if it is not, leading to  a difference
    in the number of insertions and the number of keys, so that the test
    fails. If any duplicate is rejected, the number of insertions is
    always equal to the number of keys (unless something goes wrong
    in g_hash_table_insert). And this is the default behavior for known
    duplicates anyway.
    
    Closes: https://gitlab.gnome.org/GNOME/libgweather/-/issues/168

 libgweather/tests/metar.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)
---
diff --git a/libgweather/tests/metar.c b/libgweather/tests/metar.c
index 7d6c7c04..a6fa7e79 100644
--- a/libgweather/tests/metar.c
+++ b/libgweather/tests/metar.c
@@ -41,20 +41,11 @@ parse_metar_stations (const char *contents)
             continue;
         }
 
+        /* If it is a duplicate discard it */
         if (g_hash_table_lookup (stations_ht, station)) {
-            const char * const known_duplicates[] = {
-                "VOGO",
-                "KHQG",
-                "KOEL",
-                "KTQK",
-                "KX26",
-                NULL
-            };
-            if (g_strv_contains (known_duplicates, station)) {
-                g_free (station);
-                continue;
-            }
             g_test_message ("Weather station '%s' already defined\n", station);
+            g_free (station);
+            continue;
         }
 
         g_hash_table_insert (stations_ht, station, g_strdup (line));