unistdio: Simplify code

[Bruno Haible]

Some macros were defined but never used.


2023-03-20  Bruno Haible  <bruno@clisp.org>

        unistdio: Simplify code.
        * lib/unistdio/u8-vasnprintf.c (DCHAR_T_IS_UINT8_T): Remove unused
        macro.
        * lib/unistdio/u8-u8-vasnprintf.c: Likewise.
        * lib/unistdio/u16-vasnprintf.c (DCHAR_T_IS_UINT16_T): Remove unused
        macro.
        * lib/unistdio/u16-u32-vasnprintf.c: Likewise.
        * lib/unistdio/u32-vasnprintf.c (DCHAR_T_IS_UINT32_T): Remove unused
        macro.
        * lib/unistdio/u32-u32-vasnprintf.c: Likewise.

diff --git a/lib/unistdio/u16-u16-vasnprintf.c 
b/lib/unistdio/u16-u16-vasnprintf.c
index 6fc5dad147..eb34122007 100644
--- a/lib/unistdio/u16-u16-vasnprintf.c
+++ b/lib/unistdio/u16-u16-vasnprintf.c
@@ -46,7 +46,6 @@
 #define DIRECTIVES u16_directives
 #define PRINTF_PARSE u16_printf_parse
 #define DCHAR_T uint16_t
-#define DCHAR_T_IS_UINT16_T 1
 #define DCHAR_CPY u16_cpy
 #define DCHAR_SET u16_set
 #define DCHAR_MBSNLEN u16_mbsnlen
diff --git a/lib/unistdio/u16-vasnprintf.c b/lib/unistdio/u16-vasnprintf.c
index bbcd97ae2f..ce79d97e85 100644
--- a/lib/unistdio/u16-vasnprintf.c
+++ b/lib/unistdio/u16-vasnprintf.c
@@ -47,7 +47,6 @@
 #define FCHAR_T_ONLY_ASCII 1
 #define PRINTF_PARSE ulc_printf_parse
 #define DCHAR_T uint16_t
-#define DCHAR_T_IS_UINT16_T 1
 #define DCHAR_CPY u16_cpy
 #define DCHAR_SET u16_set
 #define DCHAR_MBSNLEN u16_mbsnlen
diff --git a/lib/unistdio/u32-u32-vasnprintf.c 
b/lib/unistdio/u32-u32-vasnprintf.c
index 41d82121a3..49ac0fd940 100644
--- a/lib/unistdio/u32-u32-vasnprintf.c
+++ b/lib/unistdio/u32-u32-vasnprintf.c
@@ -46,7 +46,6 @@
 #define DIRECTIVES u32_directives
 #define PRINTF_PARSE u32_printf_parse
 #define DCHAR_T uint32_t
-#define DCHAR_T_IS_UINT32_T 1
 #define DCHAR_CPY u32_cpy
 #define DCHAR_SET u32_set
 #define DCHAR_MBSNLEN u32_mbsnlen
diff --git a/lib/unistdio/u32-vasnprintf.c b/lib/unistdio/u32-vasnprintf.c
index d4db37c5d6..12caf383d9 100644
--- a/lib/unistdio/u32-vasnprintf.c
+++ b/lib/unistdio/u32-vasnprintf.c
@@ -47,7 +47,6 @@
 #define FCHAR_T_ONLY_ASCII 1
 #define PRINTF_PARSE ulc_printf_parse
 #define DCHAR_T uint32_t
-#define DCHAR_T_IS_UINT32_T 1
 #define DCHAR_CPY u32_cpy
 #define DCHAR_SET u32_set
 #define DCHAR_MBSNLEN u32_mbsnlen
diff --git a/lib/unistdio/u8-u8-vasnprintf.c b/lib/unistdio/u8-u8-vasnprintf.c
index eefb2a2402..10b84fd652 100644
--- a/lib/unistdio/u8-u8-vasnprintf.c
+++ b/lib/unistdio/u8-u8-vasnprintf.c
@@ -46,7 +46,6 @@
 #define DIRECTIVES u8_directives
 #define PRINTF_PARSE u8_printf_parse
 #define DCHAR_T uint8_t
-#define DCHAR_T_IS_UINT8_T 1
 #define DCHAR_CPY u8_cpy
 #define DCHAR_SET u8_set
 #define DCHAR_MBSNLEN u8_mbsnlen
diff --git a/lib/unistdio/u8-vasnprintf.c b/lib/unistdio/u8-vasnprintf.c
index c4cc637221..04db721a1e 100644
--- a/lib/unistdio/u8-vasnprintf.c
+++ b/lib/unistdio/u8-vasnprintf.c
@@ -47,7 +47,6 @@
 #define FCHAR_T_ONLY_ASCII 1
 #define PRINTF_PARSE ulc_printf_parse
 #define DCHAR_T uint8_t
-#define DCHAR_T_IS_UINT8_T 1
 #define DCHAR_CPY u8_cpy
 #define DCHAR_SET u8_set
 #define DCHAR_MBSNLEN u8_mbsnlen