Remove unused assert and is_object function imports

The assert and is_object function imports were removed from multiple files as they were not being utilized in the code. Cleaning up these imports helps reduce clutter and improve code readability. This change does not affect any functionality.

src/di/MultiBinding/LazyProvider.php

@@ -7,8 +7,6 @@
 use Ray\Di\InjectorInterface;
 use Ray\Di\ProviderInterface;
 
-use function assert;
-
 /**
  * @template T of ProviderInterface
  */

src/di/Name.php

@@ -12,7 +12,6 @@
 use ReflectionMethod;
 use ReflectionParameter;
 
-use function assert;
 use function class_exists;
 use function explode;
 use function get_class;

tests/di/ArgumentsTest.php

@@ -8,8 +8,6 @@
 use ReflectionMethod;
 use ReflectionParameter;
 
-use function assert;
-use function is_object;
 use function spl_object_hash;
 
 class ArgumentsTest extends TestCase

tests/di/GrapherTest.php

@@ -9,7 +9,6 @@
 
 use function assert;
 use function file_get_contents;
-use function is_object;
 use function is_string;
 use function passthru;
 use function property_exists;