Simplified the usage of the render buffer in AEC3

Bug: webrtc:8671
Change-Id: I4af397e9f208685e4ffec2a5f92501e0d2605c42
Reviewed-on: https://webrtc-review.googlesource.com/35060
Commit-Queue: Per Åhgren <peah@webrtc.org>
Reviewed-by: Per Åhgren <peah@webrtc.org>
Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21386}
diff --git a/modules/audio_processing/aec3/render_delay_buffer.cc b/modules/audio_processing/aec3/render_delay_buffer.cc
index 0830dca..3e7901b 100644
--- a/modules/audio_processing/aec3/render_delay_buffer.cc
+++ b/modules/audio_processing/aec3/render_delay_buffer.cc
@@ -159,10 +159,7 @@
       spectra_(blocks_.buffer.size(), kFftLengthBy2Plus1),
       ffts_(blocks_.buffer.size()),
       delay_(config_.delay.min_echo_path_delay_blocks),
-      echo_remover_buffer_(config.filter.length_blocks,
-                           &blocks_,
-                           &spectra_,
-                           &ffts_),
+      echo_remover_buffer_(&blocks_, &spectra_, &ffts_),
       low_rate_(GetDownSampledBufferSize(config.delay.down_sampling_factor,
                                          config.delay.num_filters)),
       render_decimator_(config.delay.down_sampling_factor),