Revert "params: core, core/vm, miner: 64bit gas instructions (#3514)"

This reverts commit 8b57c49490.

tests/state_test.go

@@ -237,13 +237,13 @@ func TestWallet(t *testing.T) {
 }
 
 func TestStateTestsRandom(t *testing.T) {
-	t.Skip()
 	chainConfig := &params.ChainConfig{
 		HomesteadBlock: big.NewInt(1150000),
 	}
 
 	fns, _ := filepath.Glob("./files/StateTests/RandomTests/*")
 	for _, fn := range fns {
+		t.Log("running:", fn)
 		if err := RunStateTest(chainConfig, fn, StateSkipTests); err != nil {
 			t.Error(fn, err)
 		}