Delete all log messages depending on system_wrappers.

webrtc/modules/desktop_capture/x11/x_server_pixel_buffer.cc

Index: webrtc/modules/desktop_capture/x11/x_server_pixel_buffer.cc
diff --git a/webrtc/modules/desktop_capture/x11/x_server_pixel_buffer.cc b/webrtc/modules/desktop_capture/x11/x_server_pixel_buffer.cc
index ce23847cd6e7119e18789c06ba09fd04631abdc0..b4c64906549acc5f64101bdecb3bc535ab739b96 100644
--- a/webrtc/modules/desktop_capture/x11/x_server_pixel_buffer.cc
+++ b/webrtc/modules/desktop_capture/x11/x_server_pixel_buffer.cc
@@ -16,7 +16,6 @@
 
 #include "webrtc/modules/desktop_capture/desktop_frame.h"
 #include "webrtc/modules/desktop_capture/x11/x_error_trap.h"
-#include "webrtc/system_wrappers/include/logging.h"
 
 namespace {
 
@@ -150,18 +149,13 @@ void XServerPixelBuffer::InitShm(const XWindowAttributes& attributes) {
         if (error_trap.GetLastErrorAndDisable() != 0)
           using_shm = false;
         if (using_shm) {
-          LOG(LS_VERBOSE) << "Using X shared memory segment "
-                          << shm_segment_info_->shmid;
         }
       }
     } else {
-      LOG(LS_WARNING) << "Failed to get shared memory segment. "
-                      "Performance may be degraded.";
     }
   }
 
   if (!using_shm) {
-    LOG(LS_WARNING) << "Not using shared memory. Performance may be degraded.";
     ReleaseSharedMemorySegment();
     return;
   }
@@ -171,10 +165,6 @@ void XServerPixelBuffer::InitShm(const XWindowAttributes& attributes) {
 
   shmctl(shm_segment_info_->shmid, IPC_RMID, 0);
   shm_segment_info_->shmid = -1;
-
-  LOG(LS_VERBOSE) << "Using X shared memory extension v"
-                  << major << "." << minor
-                  << " with" << (have_pixmaps ? "" : "out") << " pixmaps.";
 }
 
 bool XServerPixelBuffer::InitPixmaps(int depth) {