Dont change the env for go tests

This prevents got test caching from working greatly increasing the time
for running a test

test.py

@@ -2,60 +2,11 @@
 # License: GPL v3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
 
 import importlib
-import os
-import shutil
-import warnings
-from contextlib import contextmanager
-from tempfile import TemporaryDirectory
-from typing import Iterator
-
-
-@contextmanager
-def env_vars(**kw: str) -> Iterator[None]:
-    originals = {k: os.environ.get(k) for k in kw}
-    os.environ.update(kw)
-    try:
-        yield
-    finally:
-        for k, v in originals.items():
-            if v is None:
-                os.environ.pop(k, None)
-            else:
-                os.environ[k] = v
 
 
 def main() -> None:
-    warnings.simplefilter('error')
-    gohome = os.path.expanduser('~/go')
-    go = shutil.which('go')
-    python = shutil.which('python') or shutil.which('python3')
-    current_home = os.path.expanduser('~') + os.sep
-    paths = os.environ.get('PATH', '/usr/local/sbin:/usr/local/bin:/usr/bin').split(os.pathsep)
-    path = os.pathsep.join(x for x in paths if not x.startswith(current_home))
-    launcher_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'kitty', 'launcher')
-    if go and go.startswith(current_home):
-        path = f'{os.path.dirname(go)}{os.pathsep}{path}'
-    path = f'{launcher_dir}{os.pathsep}{path}'
-    PYTHON_FOR_TYPE_CHECK = shutil.which('python') or shutil.which('python3') or ''
-    gohome = os.path.expanduser('~/go')
-    if os.environ.get('CI') == 'true':
-        print('Using PATH in test environment:', path, flush=True)
-        python = shutil.which('python', path=path) or shutil.which('python3', path=path)
-        print('Python:', python)
-        go = shutil.which('go', path=path)
-        print('Go:', go)
-    with TemporaryDirectory() as tdir, env_vars(
-        PYTHONWARNINGS='error', HOME=tdir, USERPROFILE=tdir, PATH=path,
-        XDG_CONFIG_HOME=os.path.join(tdir, '.config'),
-        XDG_CONFIG_DIRS=os.path.join(tdir, '.config'),
-        XDG_DATA_DIRS=os.path.join(tdir, '.local', 'xdg'),
-        XDG_CACHE_HOME=os.path.join(tdir, '.cache'),
-        PYTHON_FOR_TYPE_CHECK=PYTHON_FOR_TYPE_CHECK,
-    ):
-        if os.path.isdir(gohome):
-            os.symlink(gohome, os.path.join(tdir, os.path.basename(gohome)))
-        m = importlib.import_module('kitty_tests.main')
-        getattr(m, 'run_tests')()
+    m = importlib.import_module('kitty_tests.main')
+    getattr(m, 'main')()
 
 
 if __name__ == '__main__':