fix: Remove EnableECPLogging logic in client (#69)

Having this logic in the client is suppressing global logging outside of ECP for users of google-api-go-client, since this gets triggered during transport layer initialization.
diff --git a/client/client.go b/client/client.go
index 7a34c0f..b3283b8 100644
--- a/client/client.go
+++ b/client/client.go
@@ -25,7 +25,6 @@
 	"errors"
 	"fmt"
 	"io"
-	"log"
 	"net/rpc"
 	"os"
 	"os/exec"
@@ -53,17 +52,6 @@
 	return werr
 }
 
-// If ECP Logging is enabled return true
-// Otherwise return false
-func enableECPLogging() bool {
-	if os.Getenv("ENABLE_ENTERPRISE_CERTIFICATE_LOGS") != "" {
-		return true
-	}
-
-	log.SetOutput(io.Discard)
-	return false
-}
-
 func init() {
 	gob.Register(crypto.SHA256)
 	gob.Register(&rsa.PSSOptions{})
@@ -131,7 +119,6 @@
 //
 // The config file also specifies which certificate the signer should use.
 func Cred(configFilePath string) (*Key, error) {
-	enableECPLogging()
 	if configFilePath == "" {
 		configFilePath = util.GetDefaultConfigFilePath()
 	}