RTC_[D]CHECK_op: Remove "u" suffix on integer constants

webrtc/modules/audio_processing/transient/wpd_node.cc

Index: webrtc/modules/audio_processing/transient/wpd_node.cc
diff --git a/webrtc/modules/audio_processing/transient/wpd_node.cc b/webrtc/modules/audio_processing/transient/wpd_node.cc
index a689827e9a0a36da17db0ad094dc8ae8539d8a13..de382b42428c03edde63f4e1101058885fb58064 100644
--- a/webrtc/modules/audio_processing/transient/wpd_node.cc
+++ b/webrtc/modules/audio_processing/transient/wpd_node.cc
@@ -29,9 +29,9 @@ WPDNode::WPDNode(size_t length,
       filter_(FIRFilter::Create(coefficients,
                                 coefficients_length,
                                 2 * length + 1)) {
-  RTC_DCHECK_GT(length, 0u);
+  RTC_DCHECK_GT(length, 0);
   RTC_DCHECK(coefficients);
-  RTC_DCHECK_GT(coefficients_length, 0u);
+  RTC_DCHECK_GT(coefficients_length, 0);
   memset(data_.get(), 0.f, (2 * length + 1) * sizeof(data_[0]));
 }