Remove previewnet (#74)

config/config_test.go

@@ -325,12 +325,11 @@ func Test_DefaultConfig(t *testing.T) {
 	assert.Len(t, cfg.Emulators, 1)
 	assert.Equal(t, "default", cfg.Emulators[0].Name)
 	assert.Equal(t, "emulator-account", cfg.Emulators[0].ServiceAccount)
-	assert.Len(t, cfg.Networks, 5)
+	assert.Len(t, cfg.Networks, 4)
 	assert.Equal(t, "emulator", cfg.Networks[0].Name)
 	assert.Equal(t, "testing", cfg.Networks[1].Name)
 	assert.Equal(t, "testnet", cfg.Networks[2].Name)
 	assert.Equal(t, "mainnet", cfg.Networks[3].Name)
-	assert.Equal(t, "previewnet", cfg.Networks[4].Name)
 }
 
 func Test_DefaultPath(t *testing.T) {

config/contract.go

@@ -115,26 +115,23 @@ func (c *Contracts) Remove(name string) error {
 const dependencyManagerDirectory = "imports"
 
 const (
-	networkEmulator   = "emulator"
-	networkTestnet    = "testnet"
-	networkPreviewnet = "previewnet"
-	networkMainnet    = "mainnet"
+	networkEmulator = "emulator"
+	networkTestnet  = "testnet"
+	networkMainnet  = "mainnet"
 )
 
 func supportedNetworks() []string {
 	return []string{
 		networkEmulator,
 		networkTestnet,
-		networkPreviewnet,
 		networkMainnet,
 	}
 }
 
 var networkToChainID = map[string]flowGo.ChainID{
-	networkEmulator:   flowGo.Emulator,
-	networkTestnet:    flowGo.Testnet,
-	networkPreviewnet: flowGo.Previewnet,
-	networkMainnet:    flowGo.Mainnet,
+	networkEmulator: flowGo.Emulator,
+	networkTestnet:  flowGo.Testnet,
+	networkMainnet:  flowGo.Mainnet,
 }
 
 func isCoreContract(networkName, contractName, contractAddress string) bool {

config/network.go

@@ -40,16 +40,11 @@ var (
 		Name: "mainnet",
 		Host: "access.mainnet.nodes.onflow.org:9000",
 	}
-	PreviewnetNetwork = Network{
-		Name: "previewnet",
-		Host: "access.previewnet.nodes.onflow.org:9000",
-	}
 	DefaultNetworks = Networks{
 		EmulatorNetwork,
 		TestingNetwork,
 		TestnetNetwork,
 		MainnetNetwork,
-		PreviewnetNetwork,
 	}
 )