Remove order-dependent is_block_editor guard test

Author: leonidasmi

tests/Unit/Helpers/Current_Page_Helper_Test.php

@@ -937,22 +937,6 @@ public function test_is_trash_overview_without_status() {
 		$this->assertFalse( $this->instance->is_trash_overview() );
 	}
 
-	/**
-	 * Test is_block_editor function when get_current_screen() is not available.
-	 *
-	 * @covers ::is_block_editor
-	 *
-	 * @return void
-	 */
-	public function test_is_block_editor_without_get_current_screen_function() {
-		// A previously mocked get_current_screen() persists for the rest of the process, making the guard untestable.
-		if ( \function_exists( 'get_current_screen' ) ) {
-			$this->markTestSkipped( 'get_current_screen() has already been defined by another test.' );
-		}
-
-		$this->assertFalse( $this->instance->is_block_editor() );
-	}
-
 	/**
 	 * Test is_block_editor function when there is no current screen.
 	 *