Remove "inline" from cmakeconfig.h.in. [skip ci]

CMake does not define the macro, but that's irrelevant because the
source code does not use it, but that's in turn irrelevant because
inline functions are a part of C99.

Likewise, STDC_HEADERS is never defined.

Author: infrastation

cmakeconfig.h.in

@@ -243,9 +243,6 @@
 /* The size of `void *', as computed by sizeof. */
 #cmakedefine SIZEOF_VOID_P @SIZEOF_VOID_P@
 
-/* Define to 1 if you have the ANSI C header files. */
-#cmakedefine STDC_HEADERS 1
-
 /* Define to 1 if sys/ethernet.h declares `ether_ntohost' */
 #cmakedefine SYS_ETHERNET_H_DECLARES_ETHER_NTOHOST 1
 
@@ -264,9 +261,6 @@
 /* define on AIX to get certain functions */
 #cmakedefine _SUN 1
 
-/* Define as token for inline if inlining supported */
-#cmakedefine inline 1
-
 /* Define to `uint16_t' if u_int16_t not defined. */
 #cmakedefine u_int16_t 1