fix: remove fips support

This specific method for FIPs support isn't available on OpenSSLv3, and
we don't use it anyways. We're removing it to fix the build.

fips.go

@@ -1,39 +0,0 @@
-// Copyright (C) 2017. See AUTHORS.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//   http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package openssl
-
-/*
-#include <openssl/ssl.h>
-*/
-import "C"
-import "runtime"
-
-// FIPSModeSet enables a FIPS 140-2 validated mode of operation.
-// https://wiki.openssl.org/index.php/FIPS_mode_set()
-func FIPSModeSet(mode bool) error {
-	runtime.LockOSThread()
-	defer runtime.UnlockOSThread()
-
-	var r C.int
-	if mode {
-		r = C.FIPS_mode_set(1)
-	} else {
-		r = C.FIPS_mode_set(0)
-	}
-	if r != 1 {
-		return errorFromErrorQueue()
-	}
-	return nil
-}