Revert "Add gsutil 4.13 to telemetry/third_party"

tools/telemetry/third_party/gsutil/third_party/apitools/apitools/base/py/stream_slice.py

Index: tools/telemetry/third_party/gsutil/third_party/apitools/apitools/base/py/stream_slice.py
diff --git a/tools/telemetry/third_party/gsutil/third_party/apitools/apitools/base/py/stream_slice.py b/tools/telemetry/third_party/gsutil/third_party/apitools/apitools/base/py/stream_slice.py
deleted file mode 100644
index bd43daf9156477e4d90f04392d6a1f231f16cccd..0000000000000000000000000000000000000000
--- a/tools/telemetry/third_party/gsutil/third_party/apitools/apitools/base/py/stream_slice.py
+++ /dev/null
@@ -1,64 +0,0 @@
-#!/usr/bin/env python
-"""Small helper class to provide a small slice of a stream."""
-
-from apitools.base.py import exceptions
-
-
-class StreamSlice(object):
-
-    """Provides a slice-like object for streams."""
-
-    def __init__(self, stream, max_bytes):
-        self.__stream = stream
-        self.__remaining_bytes = max_bytes
-        self.__max_bytes = max_bytes
-
-    def __str__(self):
-        return 'Slice of stream %s with %s/%s bytes not yet read' % (
-            self.__stream, self.__remaining_bytes, self.__max_bytes)
-
-    def __len__(self):
-        return self.__max_bytes
-
-    def __nonzero__(self):
-        # For 32-bit python2.x, len() cannot exceed a 32-bit number; avoid
-        # accidental len() calls from httplib in the form of "if this_object:".
-        return bool(self.__max_bytes)
-
-    @property
-    def length(self):
-        # For 32-bit python2.x, len() cannot exceed a 32-bit number.
-        return self.__max_bytes
-
-    def read(self, size=None):  # pylint: disable=missing-docstring
-        """Read at most size bytes from this slice.
-
-        Compared to other streams, there is one case where we may
-        unexpectedly raise an exception on read: if the underlying stream
-        is exhausted (i.e. returns no bytes on read), and the size of this
-        slice indicates we should still be able to read more bytes, we
-        raise exceptions.StreamExhausted.
-
-        Args:
-          size: If provided, read no more than size bytes from the stream.
-
-        Returns:
-          The bytes read from this slice.
-
-        Raises:
-          exceptions.StreamExhausted
-
-        """
-        if size is not None:
-            read_size = min(size, self.__remaining_bytes)
-        else:
-            read_size = self.__remaining_bytes
-        data = self.__stream.read(read_size)
-        if read_size > 0 and not data:
-            raise exceptions.StreamExhausted(
-                'Not enough bytes in stream; expected %d, exhausted '
-                'after %d' % (
-                    self.__max_bytes,
-                    self.__max_bytes - self.__remaining_bytes))
-        self.__remaining_bytes -= len(data)
-        return data