locale.c: Don't ask a static fcn to be inlined

It's too complicated to really be inlined, and the compiler can figure
things out itself given it is a static function

embed.fnc

@@ -3224,7 +3224,7 @@ ST	|const char*|my_langinfo|const nl_item item|bool toggle
 #  else
 ST	|const char*|my_langinfo|const int item|bool toggle
 #  endif
-iTR	|const char *|save_to_buffer|NULLOK const char * string	\
+STR	|const char *|save_to_buffer|NULLOK const char * string	\
 				    |NULLOK const char **buf	\
 				    |NULLOK Size_t *buf_size	\
 				    |const Size_t offset

locale.c

@@ -2606,7 +2606,7 @@ Perl_setlocale(const int category, const char * locale)
 
 #ifdef USE_LOCALE
 
-PERL_STATIC_INLINE const char *
+STATIC const char *
 S_save_to_buffer(const char * string, const char **buf, Size_t *buf_size,
                  const Size_t offset)
 {

proto.h

@@ -5142,11 +5142,9 @@ STATIC void	S_new_numeric(pTHX_ const char* newnum);
 #define PERL_ARGS_ASSERT_NEW_NUMERIC
 STATIC void	S_restore_switched_locale(pTHX_ const int category, const char * const original_locale);
 #define PERL_ARGS_ASSERT_RESTORE_SWITCHED_LOCALE
-#ifndef PERL_NO_INLINE_FUNCTIONS
-PERL_STATIC_INLINE const char *	S_save_to_buffer(const char * string, const char **buf, Size_t *buf_size, const Size_t offset)
+STATIC const char *	S_save_to_buffer(const char * string, const char **buf, Size_t *buf_size, const Size_t offset)
 			__attribute__warn_unused_result__;
 #define PERL_ARGS_ASSERT_SAVE_TO_BUFFER
-#endif
 
 STATIC void	S_set_numeric_radix(pTHX_ const bool use_locale);
 #define PERL_ARGS_ASSERT_SET_NUMERIC_RADIX