Remove irrelevant PHP version detection (#948)

Signed-off-by: Mior Muhammad Zaki <crynobone@gmail.com>

Author: crynobone

src/Engines/DatabaseEngine.php

@@ -374,10 +374,6 @@ protected function getAttributeColumns(Builder $builder, $attributeClass)
     {
         $columns = [];
 
-        if (PHP_MAJOR_VERSION < 8) {
-            return [];
-        }
-
         foreach ((new ReflectionMethod($builder->model, 'toSearchableArray'))->getAttributes() as $attribute) {
             if ($attribute->getName() !== $attributeClass) {
                 continue;
@@ -399,10 +395,6 @@ protected function getFullTextOptions(Builder $builder)
     {
         $options = [];
 
-        if (PHP_MAJOR_VERSION < 8) {
-            return [];
-        }
-
         foreach ((new ReflectionMethod($builder->model, 'toSearchableArray'))->getAttributes(SearchUsingFullText::class) as $attribute) {
             $arguments = $attribute->getArguments()[1] ?? [];