[gcc r13-206] Remove non-ANSI C path in ansidecl.h.

[gcc r13-206] Remove non-ANSI C path in ansidecl.h.

[Martin Liska]

https://gcc.gnu.org/g:1fffe45fb5497006d7bc7875bd932c9bd9670cb6

commit r13-206-g1fffe45fb5497006d7bc7875bd932c9bd9670cb6
Author: Martin Liska <mliska@suse.cz>
Date:   Tue Feb 1 13:10:19 2022 +0100

    Remove non-ANSI C path in ansidecl.h.
    
    include/ChangeLog:
    
            * ansidecl.h (PTR): Remove Not ANCI C part.

Diff:
---
 include/ansidecl.h | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/include/ansidecl.h b/include/ansidecl.h
index 4275c9b9cbd..efee5b6904b 100644
--- a/include/ansidecl.h
+++ b/include/ansidecl.h
@@ -62,7 +62,6 @@ So instead we use the macro below and test it against specific values.  */
 #define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
 #endif /* GCC_VERSION */
 
-#if defined (__STDC__) || defined(__cplusplus) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(_WIN32)
 /* All known AIX compilers implement these things (but don't always
    define __STDC__).  The RISC/OS MIPS compiler defines these things
    in SVR4 mode, but does not define __STDC__.  */
@@ -89,22 +88,6 @@ So instead we use the macro below and test it against specific values.  */
 # endif
 #endif
 
-#else	/* Not ANSI C.  */
-
-#define PTR		char *
-
-/* some systems define these in header files for non-ansi mode */
-#undef const
-#undef volatile
-#undef signed
-#undef inline
-#define const
-#define volatile
-#define signed
-#define inline
-
-#endif	/* ANSI C.  */
-
 /* Define macros for some gcc attributes.  This permits us to use the
    macros freely, and know that they will come into play for the
    version of gcc in which they are supported.  */