remove clear() before beginInternal() so _location is not cleared before its passed to beginInternal() (#6786)

Author: liebman

libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.cpp

@@ -551,7 +551,6 @@ bool HTTPClient::setURL(const String& url)
     }
     // disconnect but preserve _client
     disconnect(true);
-    clear();
     return beginInternal(url, nullptr);
 }