benchmark: remove forced optimization from crypto

This removes all instances of %OptimizeFunctionOnNextCall from crypto
benchmarks

PR-URL: https://github.com/nodejs/node/pull/9615
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

benchmark/crypto/get-ciphers.js

@@ -12,8 +12,11 @@ function main(conf) {
   const v = conf.v;
   const method = require(v).getCiphers;
   var i = 0;
-
-  common.v8ForceOptimization(method);
+  // first call to getChipers will dominate the results
+  if (n > 1) {
+    for (; i < n; i++)
+      method();
+  }
   bench.start();
   for (; i < n; i++) method();
   bench.end(n);