x86/hvm/ioreq: remove empty line after function declaration

Introduced in commit 6ddfaabcee
("x86/hvm/ioreq: simplify code and use consistent naming").

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Paul Durrant <paul@xen.org>

xen/arch/x86/hvm/ioreq.c

@@ -169,7 +169,6 @@ static int hvm_map_ioreq_gfn(struct ioreq_server *s, bool buf)
 }
 
 static void hvm_remove_ioreq_gfn(struct ioreq_server *s, bool buf)
-
 {
     struct domain *d = s->target;
     struct ioreq_page *iorp = buf ? &s->bufioreq : &s->ioreq;