fix: custom php binary cleanup (#50)

Co-authored-by: Willem Leuverink <willem@leuver.ink>

Author: SRWieZ

src/Builder/Concerns/PrunesVendorDirectory.php

@@ -26,9 +26,8 @@ public function pruneVendorDirectory()
 
         // Remove custom php binary package directory
         $binaryPackageDirectory = $this->binaryPackageDirectory();
-        if (! empty($binaryPackageDirectory) && $filesystem->exists($this->buildPath($binaryPackageDirectory))) {
-            $binariesInBuildPath = $this->buildPath("app/{$binaryPackageDirectory}");
-            $filesystem->remove($binariesInBuildPath);
+        if (! empty($binaryPackageDirectory) && $filesystem->exists($this->buildPath("app/{$binaryPackageDirectory}"))) {
+            $filesystem->remove($this->buildPath("app/{$binaryPackageDirectory}"));
         }
     }
 }