chore(admin): drop emoji-logo cache leftovers

Emoji logos were removed long ago; the only remaining trace was a
purge of stale data/webapp-emoji cache files on theme save. Remove
the purge, the WEBAPP_EMOJI_CACHE_DIR constant and the emoji part of
the prune test.

backend/bot/app/web/admin_api_impl/themes.py

@@ -25,7 +25,6 @@ WEBAPP_UPLOADED_LOGO_DIR = Path(__file__).resolve().parents[5] / "data" / "webap
 WEBAPP_UPLOADED_LOGO_PATH = "/webapp-uploaded-logo"
 WEBAPP_FAVICON_DIR = Path(__file__).resolve().parents[5] / "data" / "webapp-logo" / "favicons"
 WEBAPP_FAVICON_PATH = "/webapp-favicon"
-WEBAPP_EMOJI_CACHE_DIR = Path(__file__).resolve().parents[5] / "data" / "webapp-emoji"
 WEBAPP_FAVICON_SIZES = (16, 32, 48, 180, 192, 512)
 WEBAPP_LOGO_UPLOAD_CONTENT_TYPES = {
     ".gif": "image/gif",
@@ -171,15 +170,6 @@ def prune_unused_appearance_assets(settings: Settings) -> None:
             except OSError:
                 logger.warning("Failed to remove unused webapp favicon set %s", path, exc_info=True)
 
-    # Emoji logos were removed; purge any leftover animated-emoji cache files.
-    for path in WEBAPP_EMOJI_CACHE_DIR.glob("*.512.*"):
-        if path.is_file():
-            try:
-                path.unlink()
-            except OSError:
-                logger.warning("Failed to remove unused webapp emoji asset %s", path, exc_info=True)
-
-
 async def _persist_appearance_upload(
     request: web.Request,
     updates: Dict[str, Any],

tests/test_webapp_assets.py

@@ -647,10 +647,8 @@ class WebAppAssetTests(unittest.IsolatedAsyncioTestCase):
             root = Path(tmpdir)
             uploads = root / "uploads"
             favicons = root / "favicons"
-            emoji = root / "emoji"
             uploads.mkdir()
             favicons.mkdir()
-            emoji.mkdir()
             (uploads / "logo-1111111111111111.png").write_bytes(b"keep")
             (uploads / "logo-2222222222222222.png").write_bytes(b"remove")
             (favicons / "aaaaaaaaaaaaaaaa").mkdir()
@@ -659,10 +657,6 @@ class WebAppAssetTests(unittest.IsolatedAsyncioTestCase):
             (favicons / "aaaaaaaaaaaaaaaa" / "icon-180.png").write_bytes(b"keep")
             (favicons / "bbbbbbbbbbbbbbbb" / "icon-180.png").write_bytes(b"keep")
             (favicons / "cccccccccccccccc" / "icon-180.png").write_bytes(b"remove")
-            # Emoji logos were removed; any leftover emoji cache files are purged.
-            (emoji / "1f929.512.gif").write_bytes(b"remove")
-            (emoji / "1f929.512.webp").write_bytes(b"remove")
-            (emoji / "1f525.512.gif").write_bytes(b"remove")
             settings = SimpleNamespace(
                 WEBAPP_LOGO_URL="/webapp-uploaded-logo/logo-1111111111111111.png",
                 WEBAPP_FAVICON_URL="/webapp-favicon/aaaaaaaaaaaaaaaa/icon-180.png",
@@ -672,7 +666,6 @@ class WebAppAssetTests(unittest.IsolatedAsyncioTestCase):
             with (
                 patch.object(admin_themes, "WEBAPP_UPLOADED_LOGO_DIR", uploads),
                 patch.object(admin_themes, "WEBAPP_FAVICON_DIR", favicons),
-                patch.object(admin_themes, "WEBAPP_EMOJI_CACHE_DIR", emoji),
             ):
                 admin_themes.prune_unused_appearance_assets(settings)
 
@@ -681,9 +674,6 @@ class WebAppAssetTests(unittest.IsolatedAsyncioTestCase):
             self.assertTrue((favicons / "aaaaaaaaaaaaaaaa").exists())
             self.assertTrue((favicons / "bbbbbbbbbbbbbbbb").exists())
             self.assertFalse((favicons / "cccccccccccccccc").exists())
-            self.assertFalse((emoji / "1f929.512.gif").exists())
-            self.assertFalse((emoji / "1f929.512.webp").exists())
-            self.assertFalse((emoji / "1f525.512.gif").exists())
 
     async def test_persist_appearance_upload_writes_overrides_and_clears_caches(self):
         settings = SimpleNamespace()