Windows: Skip InitializeSandboxInfo if the sandbox is disabled.

Calling InitializeSandboxInfo from inside libcef won’t work unless libcef is
statically linked with the executable, so there's no point in doing so.
See the Chromium sandbox docs for background.

libcef/browser/context.cc

@@ -392,7 +392,6 @@ bool CefContext::Initialize(const CefMainArgs& args,
 #if defined(OS_WIN)
   sandbox::SandboxInterfaceInfo sandbox_info = {0};
   if (windows_sandbox_info == nullptr) {
-    content::InitializeSandboxInfo(&sandbox_info);
     windows_sandbox_info = &sandbox_info;
     settings_.no_sandbox = true;
   }