[gnumeric] Compilation: fix warning.

[Morten Welinder <mortenw src gnome org>]

commit bad63941ce2d1a808831b7618972af5a4ae89bc6
Author: Morten Welinder <terra gnome org>
Date:   Wed Jul 11 14:35:56 2012 -0400

    Compilation: fix warning.

 src/cell.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/cell.c b/src/cell.c
index 32d8db5..294ec13 100644
--- a/src/cell.c
+++ b/src/cell.c
@@ -1010,7 +1010,7 @@ cell_copy (GnmCell *cell)
 	return cell;
 }
 
-static GnmCell *
+static void
 cell_free (GnmCell *cell)
 {
 }