Remove duplicate code in GuidelineComposer.php

[phpfour]

This removes some duplicate code in src/Install/GuidelineComposer.php where the same loop is executed twice:

First occurrence (lines 174-182):

$pathsUsed = $guidelines->pluck('path');

foreach ($userGuidelines as $guideline) {
    if ($pathsUsed->contains($guideline['path'])) {
        continue; // Don't include this twice if it's an override
    }

    $guidelines->put('.ai/'.$guideline['name'], $guideline);
}

Second occurrence (lines 184-192):

$pathsUsed = $guidelines->pluck('path');

foreach ($userGuidelines as $guideline) {
    if ($pathsUsed->contains($guideline['path'])) {
        continue; // Don't include this twice if it's an override
    }

    $guidelines->put('.ai/'.$guideline['name'], $guideline);
}

[pushpak1300]

Thanks !