automatic ClientFactory::start()

register the "pva" provider automatically.

examples/miniget.cpp

@@ -6,7 +6,6 @@
 
 #include <iostream>
 
-#include "pv/clientFactory.h"
 #include "pva/client.h"
 
 int main(int argc, char *argv[])
@@ -17,8 +16,6 @@ int main(int argc, char *argv[])
             return 1;
         }
 
-        epics::pvAccess::ClientFactory::start();
-
         pvac::ClientProvider provider("pva");
 
         pvac::ClientChannel channel(provider.connect(argv[1]));