revlog: cleanup some outdated docstrings

mercurial/revlog.py

@@ -935,9 +935,7 class _InnerRevlog:
         """Obtain decompressed chunks for the specified revisions.
 
         Accepts an iterable of numeric revisions that are assumed to be in
-        ascending order. Also accepts an optional already-open file handle
-        to be used for reading. If used, the seek position of the file will
-        not be preserved.
+        ascending order.
 
         This function is similar to calling ``self._chunk()`` multiple times,
         but is faster.

mercurial/revlogutils/randomaccessfile.py

@@ -171,11 +171,7 class randomaccessfile:
     def read_chunk(self, offset, length):
         """Read a chunk of bytes from the file.
 
-        Accepts an absolute offset, length to read, and an optional existing
-        file handle to read from.
-
-        If an existing file handle is passed, it will be seeked and the
-        original seek position will NOT be restored.
+        Accepts an absolute offset, length to read.
 
         Returns a str or buffer of raw byte data.