remove check for whether called from within a Git repository

Attempt to “do one thing well”.¹ We don’t in fact “want to set our own error message”.

git-default-branch/bin/git-default-branch

Lines 14 to 15 in 2ba4381

    
           # if we’re not in a Git repository, we want to set our own error message 
        
           if git rev-parse --is-inside-work-tree >/dev/null 2>&1; then

Make each program do one thing well. — Doug McIlroy (1978) ↩

	# if we’re not in a Git repository, we want to set our own error message
	if git rev-parse --is-inside-work-tree >/dev/null 2>&1; then

Footnotes