nwfilter: make some gentech driver methods static

The virNWFilterTechDriverForName & virNWFilterUpdateInstantiateFilter
methods are only used within the same source file, so don't need to
be exported.

Reviewed-by: Laine Stump <laine@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

src/nwfilter/nwfilter_gentech_driver.c

@@ -99,7 +99,7 @@ void virNWFilterTechDriversShutdown(void)
 }
 
 
-virNWFilterTechDriver *
+static virNWFilterTechDriver *
 virNWFilterTechDriverForName(const char *name)
 {
     size_t i = 0;
@@ -791,7 +791,7 @@ virNWFilterInstantiateFilter(virNWFilterDriverState *driver,
 }
 
 
-int
+static int
 virNWFilterUpdateInstantiateFilter(virNWFilterDriverState *driver,
                                    virNWFilterBindingDef *binding,
                                    bool *skipIface)

src/nwfilter/nwfilter_gentech_driver.h

@@ -26,8 +26,6 @@
 #include "virnwfilterbindingdef.h"
 #include "nwfilter_tech_driver.h"
 
-virNWFilterTechDriver *virNWFilterTechDriverForName(const char *name);
-
 int virNWFilterTechDriversInit(bool privileged);
 void virNWFilterTechDriversShutdown(void);
 
@@ -39,9 +37,6 @@ enum instCase {
 
 int virNWFilterInstantiateFilter(virNWFilterDriverState *driver,
                                  virNWFilterBindingDef *binding);
-int virNWFilterUpdateInstantiateFilter(virNWFilterDriverState *driver,
-                                       virNWFilterBindingDef *binding,
-                                       bool *skipIface);
 
 int virNWFilterInstantiateFilterLate(virNWFilterDriverState *driver,
                                      virNWFilterBindingDef *binding,