Fixed a bug that prevents clearing old models

Corrects the error of clearing old models when the model directory contains directories with names that do not match a regular expression

freqtrade/freqai/data_drawer.py

@@ -355,7 +355,7 @@ class FreqaiDataDrawer:
         for dir in model_folders:
             result = pattern.match(str(dir.name))
             if result is None:
-                break
+                continue
             coin = result.group(1)
             timestamp = result.group(2)