Remove --bitwarden-session flag

Users will likely always set the BM_SESSION environment variable anyway.

README.md

@@ -330,8 +330,7 @@ Unlock your Bitwarden vault:
 
     $ bw unlock
 
-Set the `BW_SESSION` environment variable, as instructed. You can also pass the
-session directly to `chezmoi` using the `--bitwarden-session` flag.
+Set the `BW_SESSION` environment variable, as instructed.
 
 The structured data from `bw get` is available as the `bitwarden` template
 function in your config files, for example:

cmd/secret_bitwarden.go

@@ -18,8 +18,7 @@ var bitwardenCommand = &cobra.Command{
 }
 
 type bitwardenCommandConfig struct {
-	Bw      string
-	Session string
+	Bw string
 }
 
 var bitwardenCache = make(map[string]interface{})
@@ -29,14 +28,9 @@ func init() {
 	config.addTemplateFunc("bitwarden", config.bitwardenFunc)
 
 	secretCommand.AddCommand(bitwardenCommand)
-	persistentFlags := rootCommand.PersistentFlags()
-	persistentFlags.StringVar(&config.Bitwarden.Session, "bitwarden-session", "", "bitwarden session")
 }
 
 func (c *Config) runBitwardenCommand(fs vfs.FS, args []string) error {
-	if c.Bitwarden.Session != "" {
-		args = append([]string{"--session", c.Bitwarden.Session}, args...)
-	}
 	return c.exec(append([]string{c.Bitwarden.Bw}, args...))
 }
 
@@ -46,9 +40,6 @@ func (c *Config) bitwardenFunc(args ...string) interface{} {
 		return data
 	}
 	name := c.Bitwarden.Bw
-	if c.Bitwarden.Session != "" {
-		args = append([]string{"--session", c.Bitwarden.Session}, args...)
-	}
 	args = append([]string{"get"}, args...)
 	if c.Verbose {
 		fmt.Printf("%s %s\n", name, strings.Join(args, " "))