Cleanup: remove const bool parameters and return types

These just make no sense. Since the value is copied, it
has no meaning to the caller whether the function can
change the value (and vice versa for return types).

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

core/save-profiledata.c

@@ -239,7 +239,7 @@ void save_subtitles_buffer(struct membuffer *b, struct dive *dive, int offset, i
 	free_plot_info_data(&pi);
 }
 
-int save_profiledata(const char *filename, const bool select_only)
+int save_profiledata(const char *filename, bool select_only)
 {
 	struct membuffer buf = { 0 };
 	FILE *f;