backing out configure change from bug 368206 since it's still busted with the 10.3.9 sdk

configure.in

@@ -5531,8 +5531,7 @@ dnl ========================================================
 dnl = Airbag crash reporting (on by default on supported platforms)
 dnl ========================================================
 
-if test "$OS_ARCH" = "WINNT" -a -z "$GNU_CC" \
-  || test "$OS_ARCH" = "Darwin"; then
+if test "$OS_ARCH" = "WINNT" -a -z "$GNU_CC"; then
    MOZ_AIRBAG=1
 fi