vxworks: drop support

No changes or fixes in vxworks related code since 2009 leads me to
believe that this doesn't work anymore.

Closes #8362

include/curl/curl.h

@@ -73,16 +73,15 @@
     defined(ANDROID) || defined(__ANDROID__) || defined(__OpenBSD__) || \
     defined(__CYGWIN__) || defined(AMIGA) || defined(__NuttX__) || \
    (defined(__FreeBSD_version) && (__FreeBSD_version < 800000)) || \
-   (defined(__MidnightBSD_version) && (__MidnightBSD_version < 100000)) || \
-    defined(__VXWORKS__)
+   (defined(__MidnightBSD_version) && (__MidnightBSD_version < 100000))
 #include <sys/select.h>
 #endif
 
 #if !defined(CURL_WIN32) && !defined(_WIN32_WCE)
 #include <sys/socket.h>
 #endif
 
-#if !defined(CURL_WIN32) && !defined(__VXWORKS__)
+#if !defined(CURL_WIN32)
 #include <sys/time.h>
 #endif
 

lib/Makefile.am

@@ -27,8 +27,7 @@ EXTRA_DIST = Makefile.m32 config-win32.h config-win32ce.h config-plan9.h    \
  config-riscos.h config-mac.h curl_config.h.in makefile.dj config-dos.h     \
  libcurl.plist libcurl.rc config-amigaos.h makefile.amiga config-win32ce.h  \
  config-os400.h setup-os400.h config-tpf.h mk-ca-bundle.pl mk-ca-bundle.vbs \
- $(CMAKE_DIST) firefox-db2pem.sh config-vxworks.h Makefile.vxworks          \
- checksrc.pl setup-win32.h .checksrc
+ $(CMAKE_DIST) firefox-db2pem.sh checksrc.pl setup-win32.h .checksrc
 
 lib_LTLIBRARIES = libcurl.la