[Feature][ZXW-108] Remove useless interface calls

Only Configure:No
Affected branch:master
Affected module:Call
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update:No

Change-Id: Iaae8200eb569d9a6241ce913c066fd4a780b9ebc
diff --git a/cap/zx297520v3/src/lynq/lib/liblynq-call/lynq_call.cpp b/cap/zx297520v3/src/lynq/lib/liblynq-call/lynq_call.cpp
index bee6e5e..9525e75 100755
--- a/cap/zx297520v3/src/lynq/lib/liblynq-call/lynq_call.cpp
+++ b/cap/zx297520v3/src/lynq/lib/liblynq-call/lynq_call.cpp
@@ -808,7 +808,6 @@
        return LYNQ_E_CONFLICT;

     }      

     lynq_call_hungup_all();  

-    lynq_set_voice_audio_mode(AUDIO_MODE_CODEC);

     g_module_init_flag = MODULE_SWITCHING;

     lynq_close_all_urc_socket_thread();

     lynq_close_all_rc_socket_thread();