Remove redundant branch in GridFS

Author: ShaneHarvey

gridfs/asynchronous/grid_file.py

@@ -1299,11 +1299,8 @@ async def write(self, data: Any) -> None:
             raise ValueError("cannot write to a closed file")
 
         try:
-            if isinstance(data, AsyncGridOut):
-                read = data.read
-            else:
-                # file-like
-                read = data.read
+            # file-like
+            read = data.read
         except AttributeError:
             # string
             if not isinstance(data, (str, bytes)):

gridfs/synchronous/grid_file.py

@@ -1289,11 +1289,8 @@ def write(self, data: Any) -> None:
             raise ValueError("cannot write to a closed file")
 
         try:
-            if isinstance(data, GridOut):
-                read = data.read
-            else:
-                # file-like
-                read = data.read
+            # file-like
+            read = data.read
         except AttributeError:
             # string
             if not isinstance(data, (str, bytes)):