Revert "Add gsutil 4.13 to telemetry/third_party"

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

Index: tools/telemetry/third_party/gsutil/third_party/apitools/apitools/base/py/list_pager.py
diff --git a/tools/telemetry/third_party/gsutil/third_party/apitools/apitools/base/py/list_pager.py b/tools/telemetry/third_party/gsutil/third_party/apitools/apitools/base/py/list_pager.py
deleted file mode 100644
index cf90389f8819ca44e6b121d0b838b7f163849553..0000000000000000000000000000000000000000
--- a/tools/telemetry/third_party/gsutil/third_party/apitools/apitools/base/py/list_pager.py
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/usr/bin/env python
-"""A helper function that executes a series of List queries for many APIs."""
-
-import copy
-
-__all__ = [
-    'YieldFromList',
-]
-
-
-def YieldFromList(
-        service, request, limit=None, batch_size=100,
-        method='List', field='items', predicate=None,
-        current_token_attribute='pageToken',
-        next_token_attribute='nextPageToken',
-        batch_size_attribute='maxResults'):
-    """Make a series of List requests, keeping track of page tokens.
-
-    Args:
-      service: apitools_base.BaseApiService, A service with a .List() method.
-      request: protorpc.messages.Message, The request message
-          corresponding to the service's .List() method, with all the
-          attributes populated except the .maxResults and .pageToken
-          attributes.
-      limit: int, The maximum number of records to yield. None if all available
-          records should be yielded.
-      batch_size: int, The number of items to retrieve per request.
-      method: str, The name of the method used to fetch resources.
-      field: str, The field in the response that will be a list of items.
-      predicate: lambda, A function that returns true for items to be yielded.
-      current_token_attribute: str, The name of the attribute in a
-          request message holding the page token for the page being
-          requested.
-      next_token_attribute: str, The name of the attribute in a
-          response message holding the page token for the next page.
-      batch_size_attribute: str, The name of the attribute in a
-          response message holding the maximum number of results to be
-          returned.
-
-    Yields:
-      protorpc.message.Message, The resources listed by the service.
-
-    """
-    request = copy.deepcopy(request)
-    setattr(request, batch_size_attribute, batch_size)
-    setattr(request, current_token_attribute, None)
-    while limit is None or limit:
-        response = getattr(service, method)(request)
-        items = getattr(response, field)
-        if predicate:
-            items = list(filter(predicate, items))
-        for item in items:
-            yield item
-            if limit is None:
-                continue
-            limit -= 1
-            if not limit:
-                return
-        token = getattr(response, next_token_attribute)
-        if not token:
-            return
-        setattr(request, current_token_attribute, token)