Fix warn unused variable in test (#2388)

Signed-off-by: Jorge Perez <[email protected]>

src/network/NetworkConfig_TEST.cc

@@ -33,30 +33,35 @@ TEST(NetworkManager, ValueConstructor)
  assert(config.role == NetworkRole::None);
  assert(config.numSecondariesExpected == 0);
  // Expect console warning as well
+ (void) config;
  }
 
  {
  // Primary with number of secondaries is valid
  auto config = NetworkConfig::FromValues("PRIMARY", 3);
  assert(config.role == NetworkRole::SimulationPrimary);
  assert(config.numSecondariesExpected == 3);
+ (void) config;
  }
 
  {
  // Secondary is always valid
  auto config = NetworkConfig::FromValues("SECONDARY", 0);
  assert(config.role == NetworkRole::SimulationSecondary);
+ (void) config;
  }
 
  {
  // Readonly is always valid
  auto config = NetworkConfig::FromValues("READONLY");
  assert(config.role == NetworkRole::ReadOnly);
+ (void) config;
  }
 
  {
  // Anything else is invalid
  auto config = NetworkConfig::FromValues("READ_WRITE");
  assert(config.role == NetworkRole::None);
+ (void) config;
  }
 }