nwfilter: remove obsolete code related to firewalld

There is a bunch of left over code in the nwfilter driver related to
monitoring firewalld over dbus, that is no longer used since the
conversion to use virFirewall APIs.
Reviewed-by: NJiri Denemark <jdenemar@redhat.com>
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

src/conf/virnwfilterobj.h

@@ -38,7 +38,6 @@ struct _virNWFilterDriverState {
     virNWFilterObjListPtr nwfilters;
 
     char *configDir;
-    bool watchingFirewallD;
 };
 
 virNWFilterDefPtr

src/nwfilter/nwfilter_driver.c

@@ -186,8 +186,6 @@ nwfilterStateInitialize(bool privileged,
     if (virMutexInit(&driver->lock) < 0)
         goto err_free_driverstate;
 
-    /* remember that we are going to use firewalld */
-    driver->watchingFirewallD = (sysbus != NULL);
     driver->privileged = privileged;
     if (!(driver->nwfilters = virNWFilterObjListNew()))
         goto error;
@@ -311,22 +309,6 @@ nwfilterStateReload(void)
 }
 
 
-/**
- * virNWFilterIsWatchingFirewallD:
- *
- * Checks if the nwfilter has the DBus watches for FirewallD installed.
- *
- * Returns true if it is watching firewalld, false otherwise
- */
-bool
-virNWFilterDriverIsWatchingFirewallD(void)
-{
-    if (!driver)
-        return false;
-
-    return driver->watchingFirewallD;
-}
-
 /**
  * nwfilterStateCleanup:
  *

src/nwfilter/nwfilter_driver.h

@@ -33,6 +33,4 @@
 
 int nwfilterRegister(void);
 
-bool virNWFilterDriverIsWatchingFirewallD(void);
-
 #endif /* __VIR_NWFILTER_DRIVER_H__ */