[evolution-ews] Remove -Werror.

[Matthew Barnes <mbarnes src gnome org>]

commit 9e0d210d4e43eea09b09a4a4583e86bd65a1c378
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sun Oct 23 10:32:25 2011 -0400

    Remove -Werror.
    
    Not suitable for releases.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2863512..a364aa0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -83,7 +83,7 @@ AS_COMPILER_FLAGS(WARNING_FLAGS,
 	-Wformat-nonliteral -Wformat-security -Winit-self
 	-Wmissing-declarations -Wmissing-include-dirs
 	-Wmissing-noreturn -Wnested-externs -Wpointer-arith
-	-Wundef -Wwrite-strings -Werror")
+	-Wundef -Wwrite-strings")
 AC_SUBST(WARNING_FLAGS)
 
 dnl Other useful compiler warnings for test builds only.