Revert "Bundle root CAs in the CLI (stripe#444)" (stripe#491)

This reverts commit 92ec6f5.

Author: ob-stripe

Makefile

@@ -90,13 +90,6 @@ update-openapi-spec:
 	wget https://raw.githubusercontent.com/stripe/openapi/master/openapi/spec3.sdk.json -P ./api/openapi-spec
 .PHONY: update-openapi-spec
 
-# Updates the DigiCert root certs
-update-digicert-pem:
-	rm -f ./data/certs/*.pem
-	wget https://cacerts.digicert.com/DigiCertGlobalRootCA.crt.pem -P ./data/certs
-	wget https://cacerts.digicert.com/DigiCertHighAssuranceEVRootCA.crt.pem -P ./data/certs
-.PHONY: update-digicert-pem
-
 # Releases a new version
 release:
 # This does not release anything from your local machine but creates a tag

data/certs/DigiCertGlobalRootCA.crt.pem

@@ -3,7 +3,6 @@ package stripe
 import (
 	"context"
 	"io"
-	"log"
 	"net"
 	"net/http"
 	"net/url"
@@ -114,18 +113,12 @@ func newHTTPClient(verbose bool, unixSocket string) *http.Client {
 			TLSHandshakeTimeout:   10 * time.Second,
 		}
 	} else {
-		tlsConfig, err := GetTLSConfig()
-		if err != nil {
-			log.Fatal(err)
-		}
-
 		httpTransport = &http.Transport{
 			Proxy: http.ProxyFromEnvironment,
 			DialContext: (&net.Dialer{
 				Timeout:   30 * time.Second,
 				KeepAlive: 30 * time.Second,
 			}).DialContext,
-			TLSClientConfig:     tlsConfig,
 			TLSHandshakeTimeout: 10 * time.Second,
 		}
 	}