[spatial svc] Remove hard coded rc_end_usage setting

Change-Id: Ifb09502ddf62664b3bfc62172de46bc36fde8efb

examples/vp9_spatial_svc_encoder.c

diff --git a/examples/vp9_spatial_svc_encoder.c b/examples/vp9_spatial_svc_encoder.c
index 983f52d..5bc6575 100644
--- a/examples/vp9_spatial_svc_encoder.c
+++ b/examples/vp9_spatial_svc_encoder.c
@@ -150,6 +150,7 @@
   enc_cfg->rc_target_bitrate = default_bitrate;
   enc_cfg->kf_min_dist = default_kf_dist;
   enc_cfg->kf_max_dist = default_kf_dist;
+  enc_cfg->rc_end_usage = VPX_CQ;
 
   // initialize AppInput with default values
   app_input->frames_to_code = default_frames_to_code;

vpx/src/svc_encodeframe.c

diff --git a/vpx/src/svc_encodeframe.c b/vpx/src/svc_encodeframe.c
index 4009a8a..7ce7ab6 100644
--- a/vpx/src/svc_encodeframe.c
+++ b/vpx/src/svc_encodeframe.c
@@ -580,7 +580,6 @@
   // TODO(ivanmaltz): determine if these values need to be set explicitly for
   // svc, or if the normal default/override mechanism can be used
   enc_cfg->rc_dropframe_thresh = 0;
-  enc_cfg->rc_end_usage = VPX_CBR;
   enc_cfg->rc_resize_allowed = 0;
 
   if (enc_cfg->g_pass == VPX_RC_ONE_PASS) {