Remove unreachable code (#1079)

Author: GromNaN

src/GridFS/StreamWrapper.php

@@ -46,9 +46,6 @@ class StreamWrapper
     /** @var resource|null Stream context (set by PHP) */
     public $context;
 
-    /** @var string|null */
-    private $mode;
-
     /** @var string|null */
     private $protocol;
 
@@ -127,7 +124,6 @@ public function stream_eof(): bool
     public function stream_open(string $path, string $mode, int $options, ?string &$openedPath): bool
     {
         $this->initProtocol($path);
-        $this->mode = $mode;
 
         if ($mode === 'r') {
             return $this->initReadableStream();

src/GridFS/WritableStream.php

@@ -255,8 +255,7 @@ private function abort(): void
         $this->isClosed = true;
     }
 
-    /** @return mixed */
-    private function fileCollectionInsert()
+    private function fileCollectionInsert(): void
     {
         $this->file['length'] = $this->length;
         $this->file['uploadDate'] = new UTCDateTime();
@@ -272,8 +271,6 @@ private function fileCollectionInsert()
 
             throw $e;
         }
-
-        return $this->file['_id'];
     }
 
     private function insertChunkFromBuffer(): void

src/Operation/Explain.php

@@ -159,13 +159,4 @@ private function createOptions(): array
 
         return $options;
     }
-
-    private function isFindAndModify(Explainable $explainable): bool
-    {
-        if ($explainable instanceof FindAndModify || $explainable instanceof FindOneAndDelete || $explainable instanceof FindOneAndReplace || $explainable instanceof FindOneAndUpdate) {
-            return true;
-        }
-
-        return false;
-    }
 }