* HTTP.cpp : fix is_gzipped()

HTTP.cpp

@@ -279,10 +279,7 @@ namespace http {
   }
 
   bool HTTPRes::is_gzipped() {
-    auto it = headers.find("x-i2p-gzip");
+    auto it = headers.find("Content-Encoding");
-    if (it == headers.end())
-      return true; /* i2p-specific header */
-    it = headers.find("Content-Encoding");
     if (it == headers.end())
       return false; /* no header */
     if (it->second.find("gzip") != std::string::npos)