diff --git a/escpos-printer-db b/escpos-printer-db
deleted file mode 160000
index 375135d..0000000
--- a/escpos-printer-db
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 375135d552e3fe65cbd1462b8b8d56c401b13ae7
diff --git a/src/escpos/escpos.py b/src/escpos/escpos.py
index 0a82a09..5b0038b 100644
--- a/src/escpos/escpos.py
+++ b/src/escpos/escpos.py
@@ -107,8 +107,6 @@ SW_BARCODE_NAMES = {
     for name in barcode.PROVIDED_BARCODES
 }
 
-Alignment = Union[Literal["center", "left", "right"], str]
-
 
 class Escpos(object, metaclass=ABCMeta):
     """ESC/POS Printer object.