Merge branch 'bb/unicode-12.1-reiwa' into maint

Update to Unicode 12.1 width table.

* bb/unicode-12.1-reiwa:
  unicode: update the width tables to Unicode 12.1

unicode-width.h

@@ -380,8 +380,7 @@ static const struct interval double_width[] = {
 { 0x31C0, 0x31E3 },
 { 0x31F0, 0x321E },
 { 0x3220, 0x3247 },
-{ 0x3250, 0x32FE },
-{ 0x3300, 0x4DBF },
+{ 0x3250, 0x4DBF },
 { 0x4E00, 0xA48C },
 { 0xA490, 0xA4C6 },
 { 0xA960, 0xA97C },