diff --git a/git/remote.py b/git/remote.py
@@ -5,30 +5,24 @@

"""Module implementing a remote object allowing easy access to git remotes."""

import logging
import re

-from git.cmd import handle_process_output, Git
from git.compat import defenc, force_text
from git.exc import GitCommandError
from git.util import (
-    LazyMixin,
-    IterableObj,
    IterableList,
    RemoteProgress,
-    CallableRemoteProgress,
-)
-from git.util import (
    join_path,
)

-from git.config import (
-    GitConfigParser,
-    SectionConstraint,
-    cp,
-)
-from git.refs import Head, Reference, RemoteReference, SymbolicReference, TagReference
-
# typing-------------------------------------------------------

from typing import (
@@ -345,18 +339,13 @@ class FetchInfo(IterableObj):
    @classmethod
    def refresh(cls) -> Literal[True]:
        """This gets called by the refresh function (see the top level __init__)."""
-        # clear the old values in _flag_map
-        try:
            del cls._flag_map["t"]
-        except KeyError:
-            pass
-
-        try:
            del cls._flag_map["-"]
-        except KeyError:
-            pass

-        # set the value given the git version
        if Git().version_info[:2] >= (2, 10):
            cls._flag_map["t"] = cls.TAG_UPDATE
        else: