Remove cat_path_sep setter

Author: norgeindian

Model/Importer.php

@@ -198,17 +198,6 @@ public function setImportAdapterFactory(ImportAdapterFactoryInterface $importAda
         return $this;
     }
 
-    /**
-     * @throws RuntimeException
-     */
-    public function setCategoryPathSeparator(string $categoryPathSeparator): self
-    {
-        $this->assertImportModelNotInitialized();
-        $this->settings['category_path_seperator'] = $categoryPathSeparator;
-
-        return $this;
-    }
-
     public function getValidationResult(): bool
     {
         return $this->validationResult;