Revert "git cl upload: print response headers on 404 Gerrit RPC status."

This reverts commit ea4301e5c5. We now have many
reponse headers, stopping contributions until and unless we are asked for more
as part of debugging git cl upload issues.

R=tandrii@chromium.org

Bug: 881860
Change-Id: Ic3524aa93f146cebd882efe30b2e3f110cf74838
Reviewed-on: https://chromium-review.googlesource.com/1241613
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Commit-Queue: Andy Perelson <ajp@chromium.org>

gerrit_util.py

@@ -411,26 +411,12 @@ def ReadHttpResponse(conn, accept_statuses=frozenset([200])):
       break
     # A status >=500 is assumed to be a possible transient error; retry.
     http_version = 'HTTP/%s' % ('1.1' if response.version == 11 else '1.0')
-
-    # TODO(crbug/881860): remove this special 404 handling.
-    if response.status == 404:
-      LOGGER.warn(
-          '404 NotFound error occurred while querying %s %s: %s\n'
-          'NOTE: if see this while running `git cl upload`,\n'
-          'consider reporting this to https://crbug.com/881860.\n'
-          'Please, include response headers below:\n'
-          '  %s\n',
-          conn.req_params['method'], conn.req_params['uri'], response.reason,
-          '\n  '.join(
-              json.dumps(response, sort_keys=True, indent=2).splitlines()))
-    else:
-      LOGGER.warn('A transient error occurred while querying %s:\n'
-                  '%s %s\n'
-                  '%s %d %s\n',
-                  conn.req_host,
-                  conn.req_params['method'], conn.req_params['uri'],
-                  http_version, response.status, response.reason)
-
+    LOGGER.warn('A transient error occurred while querying %s:\n'
+                '%s %s %s\n'
+                '%s %d %s',
+                conn.req_host, conn.req_params['method'],
+                conn.req_params['uri'],
+                http_version, http_version, response.status, response.reason)
     if TRY_LIMIT - idx > 1:
       LOGGER.info('Will retry in %d seconds (%d more times)...',
                   sleep_time, TRY_LIMIT - idx - 1)