qemu_command: Make qemuBuildNicStr static

It doesn't have any external callers
Signed-off-by: NCole Robinson <crobinso@redhat.com>

src/qemu/qemu_command.c

@@ -3352,7 +3352,7 @@ qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem)
 }
 
 
-char *
+static char *
 qemuBuildNicStr(virDomainNetDefPtr net,
                 const char *prefix,
                 int vlan)

src/qemu/qemu_command.h

@@ -92,11 +92,6 @@ char *qemuBuildHostNetStr(virDomainNetDefPtr net,
                           char **vhostfd,
                           size_t vhostfdSize);
 
-/* Legacy, pre device support */
-char *qemuBuildNicStr(virDomainNetDefPtr net,
-                      const char *prefix,
-                      int vlan);
-
 /* Current, best practice */
 char *qemuBuildNicDevStr(virDomainDefPtr def,
                          virDomainNetDefPtr net,