Delete all log messages depending on system_wrappers.

webrtc/modules/video_capture/video_capture_impl.cc

Index: webrtc/modules/video_capture/video_capture_impl.cc
diff --git a/webrtc/modules/video_capture/video_capture_impl.cc b/webrtc/modules/video_capture/video_capture_impl.cc
index cc4c79750953d4f7001e582e05232a94dab4bbfa..094083b948abe086e18fbc1eebd295ac4928542d 100644
--- a/webrtc/modules/video_capture/video_capture_impl.cc
+++ b/webrtc/modules/video_capture/video_capture_impl.cc
@@ -20,7 +20,6 @@
 #include "webrtc/modules/include/module_common_types.h"
 #include "webrtc/modules/video_capture/video_capture_config.h"
 #include "webrtc/system_wrappers/include/clock.h"
-#include "webrtc/system_wrappers/include/logging.h"
 
 namespace webrtc {
 namespace videocapturemodule {
@@ -142,7 +141,6 @@ int32_t VideoCaptureImpl::IncomingFrame(
         CalcBufferSize(commonVideoType, width,
                        abs(height)) != videoFrameLength)
     {
-        LOG(LS_ERROR) << "Wrong incoming frame length.";
         return -1;
     }
 
@@ -176,8 +174,6 @@ int32_t VideoCaptureImpl::IncomingFrame(
         apply_rotation ? _rotateFrame : kVideoRotation_0, buffer.get());
     if (conversionResult < 0)
     {
-      LOG(LS_ERROR) << "Failed to convert capture frame from type "
-                    << frameInfo.rawType << "to I420.";
         return -1;
     }