Removed redundant log nil checks (#178)

cors.go

@@ -391,9 +391,7 @@ func (c *Cors) handlePreflight(w http.ResponseWriter, r *http.Request) {
  if len(c.maxAge) > 0 {
  headers["Access-Control-Max-Age"] = c.maxAge
  }
- if c.Log != nil {
- c.logf(" Preflight response headers: %v", headers)
- }
+ c.logf(" Preflight response headers: %v", headers)
 }
 
 // handleActualRequest handles simple cross-origin requests, actual request or redirects
@@ -440,9 +438,7 @@ func (c *Cors) handleActualRequest(w http.ResponseWriter, r *http.Request) {
  if c.allowCredentials {
  headers["Access-Control-Allow-Credentials"] = headerTrue
  }
- if c.Log != nil {
- c.logf(" Actual response added headers: %v", headers)
- }
+ c.logf(" Actual response added headers: %v", headers)
 }
 
 // convenience method. checks if a logger is set.