Revert "test: http-test - don't read wallet.conf"

See issue #561

This reverts commit 469abb0.

Author: BluSyn

Diff for: lib/wallet/plugin.js

@@ -34,9 +34,7 @@ class Plugin extends EventEmitter {
     super();
 
     this.config = node.config.filter('wallet');
-
-    if (node.config.bool('config'))
-      this.config.open('wallet.conf');
+    this.config.open('wallet.conf');
 
     this.network = node.network;
     this.logger = node.logger;