configure: remove CURL_CHECK_FUNC_FDOPEN call

The macro itself has been removed in commit
11974ac859c5d82def59e837e0db56fef7f6794e.

Closes https://github.com/curl/curl/pull/3604

diff --git a/configure.ac b/configure.ac
index 1fc9d34d5b114ec26c2312f5cc063bbb7b23ac9c..f6ee0a7c6e99d5420446e223e013fbbf65ae1f6b 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -3612,7 +3612,6 @@ CURL_CHECK_FUNC_CLOSESOCKET
 CURL_CHECK_FUNC_CLOSESOCKET_CAMEL
 CURL_CHECK_FUNC_CONNECT
 CURL_CHECK_FUNC_FCNTL
-CURL_CHECK_FUNC_FDOPEN
 CURL_CHECK_FUNC_FREEADDRINFO
 CURL_CHECK_FUNC_FREEIFADDRS
 CURL_CHECK_FUNC_FSETXATTR