impl: remove profileDir from shell (#1583)

I noticed this wasn't being used anywhere.

Author: gcurtis

internal/impl/devbox.go

@@ -169,11 +169,6 @@ func (d *Devbox) Shell(ctx context.Context) error {
 	ctx, task := trace.NewTask(ctx, "devboxShell")
 	defer task.End()
 
-	profileDir, err := d.profilePath()
-	if err != nil {
-		return err
-	}
-
 	envs, err := d.ensurePackagesAreInstalledAndComputeEnv(ctx)
 	if err != nil {
 		return err
@@ -193,7 +188,6 @@ func (d *Devbox) Shell(ctx context.Context) error {
 
 	opts := []ShellOption{
 		WithHooksFilePath(shellgen.ScriptPath(d.ProjectDir(), shellgen.HooksFilename)),
-		WithProfile(profileDir),
 		WithHistoryFile(filepath.Join(d.projectDir, shellHistoryFile)),
 		WithProjectDir(d.projectDir),
 		WithEnvVariables(envs),

internal/impl/shell.go

@@ -59,10 +59,7 @@ type DevboxShell struct {
 	userShellrcPath string
 
 	hooksFilePath string
-
-	// profileDir is the absolute path to the directory storing the nix-profile
-	profileDir  string
-	historyFile string
+	historyFile   string
 
 	// shellStartTime is the unix timestamp for when the command was invoked
 	shellStartTime time.Time
@@ -174,12 +171,6 @@ func initShellBinaryFields(path string) *DevboxShell {
 	return shell
 }
 
-func WithProfile(profileDir string) ShellOption {
-	return func(s *DevboxShell) {
-		s.profileDir = profileDir
-	}
-}
-
 func WithHistoryFile(historyFile string) ShellOption {
 	return func(s *DevboxShell) {
 		s.historyFile = historyFile

internal/impl/shell_test.go

@@ -69,7 +69,6 @@ func testWriteDevboxShellrc(t *testing.T, testdirs []string) {
 				projectDir:      "path/to/projectDir",
 				userShellrcPath: test.shellrcPath,
 				hooksFilePath:   test.hooksFilePath,
-				profileDir:      "./.devbox/profile",
 			}
 			gotPath, err := s.writeDevboxShellrc()
 			if err != nil {