fix: remove unused getRemoteType function

Remove getRemoteType() function that became unused after refactoring
pr/mr commands to be explicit instead of auto-detecting the platform.

The RemoteType enum is still used by checkoutPROrMR(), but the
detection function is no longer needed since the command choice
(pr vs mr) now determines the platform explicitly.

Fixes linter error: func `getRemoteType` is unused (unused)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: timvw

main.go

@@ -95,24 +95,6 @@ const (
 	RemoteUnknown
 )
 
-func getRemoteType() RemoteType {
-	cmd := exec.Command("git", "remote", "get-url", "origin")
-	output, err := cmd.Output()
-	if err != nil {
-		return RemoteUnknown
-	}
-
-	url := strings.TrimSpace(string(output))
-	if strings.Contains(url, "github.com") {
-		return RemoteGitHub
-	}
-	if strings.Contains(url, "gitlab.com") || strings.Contains(url, "gitlab") {
-		return RemoteGitLab
-	}
-
-	return RemoteUnknown
-}
-
 func getPRNumber(input string) (string, error) {
 	// Check if it's a GitHub PR URL
 	githubRegex := regexp.MustCompile(`^https://github\.com/.*/pull/([0-9]+)`)