Revert unneeded changes

Author: mikebronner

src/CacheKey.php

@@ -43,7 +43,7 @@ public function make(
         $key .= $this->getOffsetClause();
         $key .= $this->getLimitClause();
         $key .= $keyDifferentiator;
-// dump($key);
+
         return $key;
     }
 

src/CachedModel.php

@@ -3,7 +3,7 @@
 use GeneaLabs\LaravelModelCaching\Traits\Cachable;
 use Illuminate\Database\Eloquent\Model;
 
-class CachedModel extends Model
+abstract class CachedModel extends Model
 {
     use Cachable;
 }