[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/api/audio_codecs/opus/audio_decoder_opus.cc b/api/audio_codecs/opus/audio_decoder_opus.cc
index 2f1668b..cd70416 100644
--- a/api/audio_codecs/opus/audio_decoder_opus.cc
+++ b/api/audio_codecs/opus/audio_decoder_opus.cc
@@ -51,7 +51,7 @@
   opus_info.supports_network_adaption = true;
   SdpAudioFormat opus_format(
       {"opus", 48000, 2, {{"minptime", "10"}, {"useinbandfec", "1"}}});
-  specs->push_back({std::move(opus_format), std::move(opus_info)});
+  specs->push_back({std::move(opus_format), opus_info});
 }
 
 std::unique_ptr<AudioDecoder> AudioDecoderOpus::MakeAudioDecoder(