Revert "hdonly: prevent regex on null input"

This reverts commit 857278c724.

src/Jackett.Common/Definitions/hdonly.yml

@@ -106,7 +106,7 @@ search:
     # does not support categories, uses releasetype for single filter so we cannot do multi releasetype filtering either.
     # $raw: "{{ range .Categories }}filter_cat[{{.}}]=1&{{end}}"
     searchstr: "{{ .Keywords }}"
-    filelist: "{{ if .Query.Episode }}{{ re_replace .Query.Episode \"\\bS\\d{1,3}\\b\" \"\" }}{{ else }}{{ end }}"
+    filelist: "{{ re_replace .Query.Episode \"\\bS\\d{1,3}\\b\" \"\" }}"
     taglist: "{{ .Query.Genre }}"
     action: browse
     group_results: 0