Delete all log messages depending on system_wrappers.

webrtc/modules/desktop_capture/window_capturer_mac.mm

Index: webrtc/modules/desktop_capture/window_capturer_mac.mm
diff --git a/webrtc/modules/desktop_capture/window_capturer_mac.mm b/webrtc/modules/desktop_capture/window_capturer_mac.mm
index 0f59de7e69f4cfb1c15580ad0f47f07290cce9e4..45fd8e5da2b9fe77ad9b769b1c283cd85e8b5a74 100644
--- a/webrtc/modules/desktop_capture/window_capturer_mac.mm
+++ b/webrtc/modules/desktop_capture/window_capturer_mac.mm
@@ -22,7 +22,6 @@
 #include "webrtc/modules/desktop_capture/mac/desktop_configuration.h"
 #include "webrtc/modules/desktop_capture/mac/full_screen_chrome_window_detector.h"
 #include "webrtc/modules/desktop_capture/mac/window_list_utils.h"
-#include "webrtc/system_wrappers/include/logging.h"
 
 namespace webrtc {
 
@@ -97,7 +96,6 @@ bool WindowCapturerMac::FocusOnSelectedSource() {
       CGWindowListCreateDescriptionFromArray(window_id_array);
   if (!window_array || 0 == CFArrayGetCount(window_array)) {
     // Could not find the window. It might have been closed.
-    LOG(LS_INFO) << "Window not found";
     CFRelease(window_id_array);
     return false;
   }
@@ -154,7 +152,6 @@ void WindowCapturerMac::CaptureFrame() {
 
   int bits_per_pixel = CGImageGetBitsPerPixel(window_image);
   if (bits_per_pixel != 32) {
-    LOG(LS_ERROR) << "Unsupported window image depth: " << bits_per_pixel;
     CFRelease(window_image);
     callback_->OnCaptureResult(Result::ERROR_PERMANENT, nullptr);
     return;