cmake: delete duplicate HAVE_GETADDRINFO test

A custom `HAVE_GETADDRINFO` check came with the initial CMake commit
[1]. A later commit [2] added a standard check for it as well. The
standard check run before the custom one, so CMake ignored the latter.

The custom check was also non-portable, so this patch deletes it in
favor of the standard check.

[1] 4c5307b456
[2] aec7c5a87c

Closes #9731

CMake/CurlTests.c

@@ -184,28 +184,6 @@ if (sizeof (bool *) )
 #include <float.h>
 int main() { return 0; }
 #endif
-#ifdef HAVE_GETADDRINFO
-#include <netdb.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-
-int main(void) {
-    struct addrinfo hints, *ai;
-    int error;
-
-    memset(&hints, 0, sizeof(hints));
-    hints.ai_family = AF_UNSPEC;
-    hints.ai_socktype = SOCK_STREAM;
-#ifndef getaddrinfo
-    (void)getaddrinfo;
-#endif
-    error = getaddrinfo("127.0.0.1", "8080", &hints, &ai);
-    if (error) {
-        return 1;
-    }
-    return 0;
-}
-#endif
 #ifdef HAVE_FILE_OFFSET_BITS
 #ifdef _FILE_OFFSET_BITS
 #undef _FILE_OFFSET_BITS

CMakeLists.txt

@@ -1130,7 +1130,6 @@ foreach(CURL_TEST
     HAVE_IN_ADDR_T
     HAVE_BOOL_T
     STDC_HEADERS
-    HAVE_GETADDRINFO
     HAVE_FILE_OFFSET_BITS
     HAVE_VARIADIC_MACROS_C99
     HAVE_VARIADIC_MACROS_GCC