[clang-tidy] Apply performance-move-const-arg fixes.

This CL is a manual spin-off of [1], which tried to apply clang-tidy's
performance-move-const-arg [1] to the WebRTC codebase.

Since there are some wrong fixes to correct, this CL collects all the
fixes that could be landed as is.

[1] - https://webrtc-review.googlesource.com/c/src/+/120350
[2] - https://clang.llvm.org/extra/clang-tidy/checks/performance-move-const-arg.html

Bug: webrtc:10252
Change-Id: Ic4882213556344e65c66e27415e91ff6f89134d7
Reviewed-on: https://webrtc-review.googlesource.com/c/120814
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26515}
diff --git a/call/simulated_network.cc b/call/simulated_network.cc
index 9bb8bab..0884b29 100644
--- a/call/simulated_network.cc
+++ b/call/simulated_network.cc
@@ -125,7 +125,7 @@
     }
 
     // Time to get this packet.
-    PacketInfo packet = std::move(capacity_link_.front());
+    PacketInfo packet = capacity_link_.front();
     capacity_link_.pop();
 
     time_us += time_until_front_exits_us;
@@ -165,7 +165,7 @@
         needs_sort = true;
       }
     }
-    delay_link_.emplace_back(std::move(packet));
+    delay_link_.emplace_back(packet);
   }
   last_capacity_link_visit_us_ = time_now_us;
   // Cannot save unused capacity for later.