Refactor trivial piece of code overcomplicated

src/event_handlers/source_code_event_handler.py

@@ -96,7 +96,4 @@ def map_file_extension_to_language(filename):
         '.cs': 'csharp'
     }
     _, extension = splitext(filename)
-    language = 'text'
-    try: language = language_map[extension]
-    except KeyError: log.debug('No such extension in list, falling back to default: "{}".'.format(language))
-    return language
+    return language_map.get(extension, 'text')