Delete all log messages depending on system_wrappers.

webrtc/modules/desktop_capture/mouse_cursor_monitor_x11.cc

Index: webrtc/modules/desktop_capture/mouse_cursor_monitor_x11.cc
diff --git a/webrtc/modules/desktop_capture/mouse_cursor_monitor_x11.cc b/webrtc/modules/desktop_capture/mouse_cursor_monitor_x11.cc
index 64ae44d9d34f25408502432a2aa86d9b5cbf0b4b..063f20f1080d741daf3b426afedc755aa29dd6b2 100644
--- a/webrtc/modules/desktop_capture/mouse_cursor_monitor_x11.cc
+++ b/webrtc/modules/desktop_capture/mouse_cursor_monitor_x11.cc
@@ -20,7 +20,6 @@
 #include "webrtc/modules/desktop_capture/desktop_frame.h"
 #include "webrtc/modules/desktop_capture/mouse_cursor.h"
 #include "webrtc/modules/desktop_capture/x11/x_error_trap.h"
-#include "webrtc/system_wrappers/include/logging.h"
 
 namespace {
 
@@ -38,8 +37,6 @@ Window GetTopLevelWindow(Display* display, Window window) {
     unsigned int num_children;
     if (!XQueryTree(display, window, &root, &parent, &children,
                     &num_children)) {
-      LOG(LS_ERROR) << "Failed to query for child windows although window"
-                    << "does not have a valid WM_STATE.";
       return None;
     }
     if (children)
@@ -147,7 +144,6 @@ void MouseCursorMonitorX11::Init(Callback* callback, Mode mode) {
 
     CaptureCursor();
   } else {
-    LOG(LS_INFO) << "X server does not support XFixes.";
   }
 }