scripts/functions: only use one download program

Currently, we use either wget or curl, whichever is installed.
In case both are installed, both are used. This means that it
takes a while trying all extensions.

Remove use of wget, and use only curl.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

--- binutils/ld/ldmain.c

+++ binutils/ld/ldmain.c

@@ -296,6 +296,7 @@ main (int argc, char **argv)

   link_info.allow_undefined_version = TRUE;

   link_info.keep_memory = TRUE;

+  link_info.new_dtags = TRUE;

   link_info.combreloc = TRUE;

   link_info.strip_discarded = TRUE;

   link_info.callbacks = &link_callbacks;