Remove Windows checks from curses (#11241)

Co-authored-by: Akuli <akuviljanen17@gmail.com>

stdlib/curses/ascii.pyi

@@ -1,63 +1,62 @@
-import sys
 from typing import TypeVar
 
-if sys.platform != "win32":
-    _CharT = TypeVar("_CharT", str, int)
+_CharT = TypeVar("_CharT", str, int)
 
-    NUL: int
-    SOH: int
-    STX: int
-    ETX: int
-    EOT: int
-    ENQ: int
-    ACK: int
-    BEL: int
-    BS: int
-    TAB: int
-    HT: int
-    LF: int
-    NL: int
-    VT: int
-    FF: int
-    CR: int
-    SO: int
-    SI: int
-    DLE: int
-    DC1: int
-    DC2: int
-    DC3: int
-    DC4: int
-    NAK: int
-    SYN: int
-    ETB: int
-    CAN: int
-    EM: int
-    SUB: int
-    ESC: int
-    FS: int
-    GS: int
-    RS: int
-    US: int
-    SP: int
-    DEL: int
+NUL: int
+SOH: int
+STX: int
+ETX: int
+EOT: int
+ENQ: int
+ACK: int
+BEL: int
+BS: int
+TAB: int
+HT: int
+LF: int
+NL: int
+VT: int
+FF: int
+CR: int
+SO: int
+SI: int
+DLE: int
+DC1: int
+DC2: int
+DC3: int
+DC4: int
+NAK: int
+SYN: int
+ETB: int
+CAN: int
+EM: int
+SUB: int
+ESC: int
+FS: int
+GS: int
+RS: int
+US: int
+SP: int
+DEL: int
 
-    controlnames: list[int]
-    def isalnum(c: str | int) -> bool: ...
-    def isalpha(c: str | int) -> bool: ...
-    def isascii(c: str | int) -> bool: ...
-    def isblank(c: str | int) -> bool: ...
-    def iscntrl(c: str | int) -> bool: ...
-    def isdigit(c: str | int) -> bool: ...
-    def isgraph(c: str | int) -> bool: ...
-    def islower(c: str | int) -> bool: ...
-    def isprint(c: str | int) -> bool: ...
-    def ispunct(c: str | int) -> bool: ...
-    def isspace(c: str | int) -> bool: ...
-    def isupper(c: str | int) -> bool: ...
-    def isxdigit(c: str | int) -> bool: ...
-    def isctrl(c: str | int) -> bool: ...
-    def ismeta(c: str | int) -> bool: ...
-    def ascii(c: _CharT) -> _CharT: ...
-    def ctrl(c: _CharT) -> _CharT: ...
-    def alt(c: _CharT) -> _CharT: ...
-    def unctrl(c: str | int) -> str: ...
+controlnames: list[int]
+
+def isalnum(c: str | int) -> bool: ...
+def isalpha(c: str | int) -> bool: ...
+def isascii(c: str | int) -> bool: ...
+def isblank(c: str | int) -> bool: ...
+def iscntrl(c: str | int) -> bool: ...
+def isdigit(c: str | int) -> bool: ...
+def isgraph(c: str | int) -> bool: ...
+def islower(c: str | int) -> bool: ...
+def isprint(c: str | int) -> bool: ...
+def ispunct(c: str | int) -> bool: ...
+def isspace(c: str | int) -> bool: ...
+def isupper(c: str | int) -> bool: ...
+def isxdigit(c: str | int) -> bool: ...
+def isctrl(c: str | int) -> bool: ...
+def ismeta(c: str | int) -> bool: ...
+def ascii(c: _CharT) -> _CharT: ...
+def ctrl(c: _CharT) -> _CharT: ...
+def alt(c: _CharT) -> _CharT: ...
+def unctrl(c: str | int) -> str: ...