src/libmsc/ussd.c: drop useless forward declaration

There is no any significant reason to define static function
'send_own_number' after the code that calls it.

Change-Id: I8d804398cfa460eaa5a5f84f0ed90909488d0bdd
1 file changed
tree: b127034cc04c4a856d5d545e5a0109173ddd0023
  1. contrib/
  2. debian/
  3. openbsc/
  4. .gitignore
  5. .gitreview
  6. .mailmap