Delete all log messages depending on system_wrappers.

webrtc/modules/desktop_capture/x11/shared_x_display.cc

Index: webrtc/modules/desktop_capture/x11/shared_x_display.cc
diff --git a/webrtc/modules/desktop_capture/x11/shared_x_display.cc b/webrtc/modules/desktop_capture/x11/shared_x_display.cc
index c5b9bd914c3bc0ddfb415cd1920571406fed39d7..65f68ca133bb31b5a75205b45054fa02a453a394 100644
--- a/webrtc/modules/desktop_capture/x11/shared_x_display.cc
+++ b/webrtc/modules/desktop_capture/x11/shared_x_display.cc
@@ -15,7 +15,6 @@
 #include <algorithm>
 
 #include "webrtc/base/checks.h"
-#include "webrtc/system_wrappers/include/logging.h"
 
 namespace webrtc {
 
@@ -35,7 +34,6 @@ rtc::scoped_refptr<SharedXDisplay> SharedXDisplay::Create(
   Display* display =
       XOpenDisplay(display_name.empty() ? NULL : display_name.c_str());
   if (!display) {
-    LOG(LS_ERROR) << "Unable to open display";
     return NULL;
   }
   return new SharedXDisplay(display);