Amélioration du chargement de SongbookUtils et crepbook

Suite à cette discussion :
ba15ad1093 (commitcomment-6391205)

songbook_core/data/templates/default.tex

@@ -69,15 +69,12 @@
 (* extends "songs.tex" *)
 (* set indexes = "titleidx,authidx" *)
 
-(* block songbookpackages *)
-   (( super() ))
-
-  \usepackage{chords}
-(* endblock *)
 
 (* block songbookpreambule *)
    (( super() ))
 
+  \usepackage{chords}
+
    \title{((title))}
    \author{((author))}
 

songbook_core/data/templates/patacrep.tex

@@ -44,14 +44,11 @@
 (* extends "default.tex" *)
 
 (* block songbookpackages *)
-   (( super() ))
-
 \usepackage[((booktype)),
             (* for option in bookoptions *)((option)),
             (* endfor *)
             (* for instrument in instruments *)((instrument)),
             (* endfor *)]{crepbook}
-  \usepackage{chords}
 (* endblock *)
 
 (* block songbookpreambule *)

songbook_core/data/templates/songs.tex

@@ -22,8 +22,6 @@
 (* extends "layout.tex" *)
 
 (* block songbookpackages *)
-   (( super() ))
-
 \usepackage[((booktype)),
             (* for option in bookoptions *)((option)),
             (* endfor *)