http: merge two "case" statements

lib/http.c

@@ -450,9 +450,6 @@ static CURLcode http_perhapsrewind(struct connectdata *conn)
     /* figure out how much data we are expected to send */
     switch(data->set.httpreq) {
     case HTTPREQ_POST:
-      if(data->state.infilesize != -1)
-        expectsend = data->state.infilesize;
-      break;
     case HTTPREQ_PUT:
       if(data->state.infilesize != -1)
         expectsend = data->state.infilesize;