Remove quotes.

Author: colonelpopcorn

lib/virtualbox.js

@@ -493,7 +493,7 @@ class Virtualbox {
       // Path may not contain VBoxManage.exe but it provides this environment variable
       const vBoxInstallPath =
         process.env.VBOX_INSTALL_PATH || process.env.VBOX_MSI_INSTALL_PATH;
-      this._vBoxManageBinary = `"${vBoxInstallPath}VBoxManage.exe"`;
+      this._vBoxManageBinary = `${vBoxInstallPath}VBoxManage.exe`;
     } else if (/^darwin/.test(host_platform) || /^linux/.test(host_platform)) {
       // Mac OS X and most Linux use the same binary name, in the path
       this._vBoxManageBinary = 'vboxmanage';