Cleanup no longer used macros

lib/select.c

@@ -53,7 +53,6 @@
 
 #if defined(USE_WINSOCK) || defined(TPF)
 #define VERIFY_SOCK(x) do { } while (0)
-#define VERIFY_NFDS(x) do { } while (0)
 #else
 #define VALID_SOCK(s) (((s) >= 0) && ((s) < FD_SETSIZE))
 #define VERIFY_SOCK(x) do { \
@@ -62,13 +61,6 @@
     return -1; \
   } \
 } while(0)
-#define VALID_NFDS(n) (((n) >= 0) && ((n) <= FD_SETSIZE))
-#define VERIFY_NFDS(x) do { \
-  if(!VALID_NFDS(x)) { \
-    SET_SOCKERRNO(EINVAL); \
-    return -1; \
-  } \
-} while(0)
 #endif
 
 /* Convenience local macros */
@@ -81,8 +73,6 @@
 #define error_is_EINTR  (0)
 #endif
 
-#define SMALL_POLLNFDS  0x20
-
 /*
  * Internal function used for waiting a specific amount of ms
  * in Curl_socket_ready() and Curl_poll() when no file descriptor