Address review comments.

ql/src/semmle/go/security/OpenUrlRedirect.qll

@@ -30,15 +30,6 @@ module OpenUrlRedirect {
     override predicate isBarrier(DataFlow::Node node) { node instanceof Barrier }
 
     override predicate isAdditionalFlowStep(DataFlow::Node pred, DataFlow::Node succ) {
-      // A write to URL.Host
-      exists(Write write, Field f, DataFlow::SsaNode var |
-        write.writesField(var.getAUse(), f, pred) and
-        succ = var.getAUse() and
-        write.getASuccessor+() = succ.asInstruction() and
-        f.getName() = "Host" and
-        var.getType().hasQualifiedName("net/url", "URL")
-      )
-      or
       // taint steps that do not include flow through fields
       TaintTracking::localTaintStep(pred, succ) and not TaintTracking::fieldReadStep(pred, succ)
       or