dahdi.init: Don't exit on lack of /etc/dahdi/system.conf

auto_spans and dahdi_cfg -c are valid config methods which may not have a
/etc/dahdi/system.conf. We already check for the existance of the dahdi modules
before the case start, so I think it's safe to remove this section.

Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>

dahdi.init

@@ -237,11 +237,6 @@ if [ ! -x "$DAHDI_CFG" ]; then
        exit 0
 fi
 
-if [ ! -f /etc/dahdi/system.conf ]; then
-	echo "/etc/dahdi/system.conf not found. Nothing to do."
-       exit 0
-fi
-
 RETVAL=0
 
 # See how we were called.