Revert "初步的 kvmd 国际化（汉化）支持"

This reverts commit 20927c7226.

kvmd/usb.py

@@ -22,8 +22,6 @@
 
 import os
 
-from .lanuages import Lanuages
-
 from . import env
 
 
@@ -33,10 +31,10 @@ def find_udc(udc: str) -> str:
     candidates = sorted(os.listdir(path))
     if not udc:
         if len(candidates) == 0:
-            raise RuntimeError(Lanuages().gettext("Can't find any UDC"))
+            raise RuntimeError("Can't find any UDC")
         udc = candidates[0]
     elif udc not in candidates:
-        raise RuntimeError(Lanuages().gettext(f"Can't find selected UDC: {udc}"))
+        raise RuntimeError(f"Can't find selected UDC: {udc}")
     return udc  # fe980000.usb